{"id":38,"date":"2017-03-22T10:01:41","date_gmt":"2017-03-22T10:01:41","guid":{"rendered":"http:\/\/kgopakumar.dese.iisc.ac.in\/?page_id=38"},"modified":"2025-10-27T06:55:29","modified_gmt":"2025-10-27T06:55:29","slug":"home","status":"publish","type":"page","link":"https:\/\/faculty.dese.iisc.ac.in\/kgopakumar\/","title":{"rendered":"Home"},"content":{"rendered":"<p>[et_pb_section bb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; inner_width=&#8221;auto&#8221; inner_max_width=&#8221;1280px&#8221; next_background_color=&#8221;#000000&#8243;][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; width=&#8221;80%&#8221; max_width=&#8221;1280px&#8221;][et_pb_column type=&#8221;4_4&#8243; custom_padding__hover=&#8221;|||&#8221; custom_padding=&#8221;|||&#8221;][et_pb_text background_layout=&#8221;light&#8221; text_orientation=&#8221;left&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;]<\/p>\n<p>\n<b><i><span style=\"font-family: Arial;font-size: x-large\">Professor K. Gopakumar<\/span><\/i><\/b><\/p>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row admin_label=&#8221;row&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; width=&#8221;80%&#8221; max_width=&#8221;1280px&#8221;][et_pb_column type=&#8221;1_4&#8243; custom_padding__hover=&#8221;|||&#8221; custom_padding=&#8221;|||&#8221;][et_pb_image src=&#8221;http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/03\/kgopa3.jpg&#8221; show_in_lightbox=&#8221;off&#8221; url_new_window=&#8221;off&#8221; use_overlay=&#8221;off&#8221; animation=&#8221;left&#8221; sticky=&#8221;off&#8221; align=&#8221;left&#8221; force_fullwidth=&#8221;off&#8221; always_center_on_mobile=&#8221;on&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; animation_style=&#8221;slide&#8221; animation_duration=&#8221;500ms&#8221; animation_intensity_slide=&#8221;10%&#8221; animation_direction=&#8221;left&#8221; show_bottom_space=&#8221;on&#8221; align_last_edited=&#8221;on|desktop&#8221; align_tablet=&#8221;center&#8221;]<\/p>\n<p>\n&nbsp;<\/p>\n<p>[\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;3_4&#8243; custom_padding__hover=&#8221;|||&#8221; custom_padding=&#8221;|||&#8221;][et_pb_text background_layout=&#8221;light&#8221; text_orientation=&#8221;left&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;]<\/p>\n<p>\nProfessor<br \/>Department of Electronic Systems Engineering ( Formerly CEDT)<br \/>Indian Institute of Science (IISc)<br \/>Bangalore 560012<\/p>\n<p>Email : kgopa@iisc.ac.in<br \/>Phone : +91 80 23600810 Ext 234 (off.)<br \/>Mobile : +91-9448227853<br \/>Fax : 080-22932290, 080-23600808<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; width=&#8221;80%&#8221; max_width=&#8221;1280px&#8221;][et_pb_column type=&#8221;4_4&#8243; custom_padding__hover=&#8221;|||&#8221; custom_padding=&#8221;|||&#8221;][et_pb_text background_layout=&#8221;light&#8221; text_orientation=&#8221;left&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;]<\/p>\n<p align=\"justify\">Dr. K. Gopakumar received his B.E. (Electrical Engineering) degree from Indian Institute of Science in 1980. Later on he did his M. Sc. (Engg.) (E.E.) in 1984 and Ph.D. (E.E.) in 1994 both from the Indian Institute of Science respectively. His thesis title for M.Sc. was &#8220;A Series Dual Current Source Inverter fed Split-Phase Induction Motor Drive&#8221; and thesis title for Ph.D. was &#8220;Study on Voltage Source Inverter fed Drives for Induction Motor with Split Phase Windings&#8221;.<\/p>\n<p align=\"justify\">Dr. Gopakumar is currently a Professor at the Department of Electronic sytems Engineering( formerly CEDT- Centre for Electronics Design and Technology (CEDT), at Indian Institute of Science (IISc), Bangalore, India. He is also the member of the following professional bodies :-<\/p>\n<ul>\n<li>Fellow IEEE<\/li>\n<li>Fellow IETE (India)<\/li>\n<li>Fellow Indian National academy of Engineers (FNAE)<\/li>\n<li>Co Editor-in-Chief IEEE Trans. On Industrial Electronics.<\/li>\n<li>IETE (India)- B.K Bose award for contributions to the area of power electronics and drives for high power applications<\/li>\n<li>Distinguished Lecturer-IEEE Industrial Electronics Society<\/li>\n<li>IISc Alumni award for Excellence in Research in Engineering-2016<\/li>\n<li>ABB Chair professor 2016 -2018<\/li>\n<li>IEEE IE Eugene Mittelmann achievement award-2019<\/li>\n<li>Honorary PhD( Doctor Honoris Causa) By Lublin University of Technology, Poland<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section bb_built=&#8221;1&#8243; fullwidth=&#8221;off&#8221; specialty=&#8221;off&#8221; transparent_background=&#8221;off&#8221; allow_player_pause=&#8221;off&#8221; inner_shadow=&#8221;off&#8221; parallax=&#8221;off&#8221; parallax_method=&#8221;off&#8221; make_fullwidth=&#8221;off&#8221; use_custom_width=&#8221;off&#8221; width_unit=&#8221;on&#8221; make_equal=&#8221;off&#8221; use_custom_gutter=&#8221;off&#8221; module_id=&#8221;Professional&#8221; inner_width=&#8221;auto&#8221; inner_max_width=&#8221;1280px&#8221; prev_background_color=&#8221;#ffffff&#8221; next_background_color=&#8221;#ffffff&#8221;][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; width=&#8221;80%&#8221; max_width=&#8221;1280px&#8221;][et_pb_column type=&#8221;4_4&#8243; custom_padding__hover=&#8221;|||&#8221; custom_padding=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Professional Experience&#8221; background_layout=&#8221;light&#8221; text_orientation=&#8221;justified&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;]<\/p>\n<p>\n<strong>Professional Experience &#8211; 27 years<\/strong><\/p>\n<p>1984-1987: During this period, Dr. K. Gopakumar was employed by the Indian Space Research Organisation, Satellite Centre, Bangalore, India. The nature of the work was to design and develop satellite on board power supply systems. During this period he was fully involved in the design, development and testing of the SROSS-1 (Stretched Rohini Satellite Series-1) main power supply systems (switched mode power supply systems) for the controls and payloads.<\/p>\n<p>From 1987 onwards: employed at CEDT, Indian Institute of Science, Bangalore, India.<\/p>\n<ul>\n<li>1987 to 1993: Scientific Officer,<\/li>\n<li>1993 to 1997: Senior Scientific officer,<\/li>\n<li>1997 to 2003: Assistant Professor<\/li>\n<li>2003 to 2007: Associate Professor<\/li>\n<li>2007 onwards: Professor<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section bb_built=&#8221;1&#8243; fullwidth=&#8221;off&#8221; specialty=&#8221;off&#8221; transparent_background=&#8221;off&#8221; allow_player_pause=&#8221;off&#8221; inner_shadow=&#8221;off&#8221; parallax=&#8221;off&#8221; parallax_method=&#8221;off&#8221; make_fullwidth=&#8221;off&#8221; use_custom_width=&#8221;off&#8221; width_unit=&#8221;on&#8221; make_equal=&#8221;off&#8221; use_custom_gutter=&#8221;off&#8221; module_id=&#8221;MTech&#8221; inner_width=&#8221;auto&#8221; inner_max_width=&#8221;1280px&#8221; prev_background_color=&#8221;#ffffff&#8221; next_background_color=&#8221;#ffffff&#8221;][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; width=&#8221;80%&#8221; max_width=&#8221;1280px&#8221;][et_pb_column type=&#8221;4_4&#8243; custom_padding__hover=&#8221;|||&#8221; custom_padding=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Major M.Tech. Projects&#8221; background_layout=&#8221;light&#8221; text_orientation=&#8221;justified&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;]<\/p>\n<h3><a name=\"mtech\"><\/a>Major M.Tech. Projects<\/h3>\n<ol>\n<li><span style=\"color: #000080\"><strong>Multiple outputs switched mode power pack<\/strong><\/span> &#8211; A compact general-purpose power supply with feedback control is designed and developed, using power MOSFETS. Output power is 50 watts and the converter switching frequency is 50kHz.<\/li>\n<li><span style=\"color: #000080\"><strong>PWM current source inverter drive<\/strong><\/span> &#8211; A four-quadrant converter is designed for a 5HP induction motor drive. This involved the design and development of front-end phase controlled converter, current source inverter using thyristors and the necessary PWM closed loop control circuits.<\/li>\n<li><span style=\"color: #000080\"><strong>A PWM drive for a high speed PCB drilling machine<\/strong><\/span> &#8211; A compact 1kHz output frequency PWM inverter is designed and developed, using power MOSFETs, for a 150 watts, 50,000rpm PCB drilling motor.<\/li>\n<li><span style=\"color: #000080\"><strong>AC servo drive &#8211; power circuit<\/strong><\/span> &#8211; A front-end controlled converter for inverter drive applications is designed and developed.<\/li>\n<li><span style=\"color: #000080\"><strong>110 volt, PWM inverter for railways<\/strong><\/span> &#8211; A 2kw MOSFET based PWM inverter is designed and developed with necessary control circuit and the output filters for the sine wave operation. The input to the inverter is battery and a controlled voltage booster stage is also developed.<\/li>\n<li><span style=\"color: #000080\"><strong>A field oriented controlled inverter drive for induction motor using DSP -AD 2105<\/strong> <\/span>&#8211; A digital control card for a vector-controlled drive is developed. Inputs to the card are the speed reference signal, speed feed back signal, motor voltage and current signals. Appropriate speed and current control loops and the vector rotator algorithms are implemented and the controller card will output the required inverter PWM signals.<\/li>\n<li><span style=\"color: #000080\"><strong>A general purpose V\/f drive using flux computation from terminal measurements<\/strong><\/span> &#8211; The general purpose PWM card is developed using 80 C 196 microcontroller. Space phasor based PWM for variable speed operation is implemented with appropriate protection circuits.<\/li>\n<li><span style=\"color: #000080\"><strong>A space phasor based PWM inverter drive using single chip micro controller<\/strong><\/span> &#8211; This is a continuation of the above-mentioned project for extending the motor operation in the over modulation region, without any transients.<\/li>\n<li><span style=\"color: #000080\"><strong>A multi Axis space Phasor Based PWM Current Hysteresis Controller for V\/f drive<\/strong><\/span> The aim is to develop a simple space phasor based current hysteresis controller for V\/f drive using DSP chip, for an IGBT based inverter.<\/li>\n<li><span style=\"color: #000080\"><strong>A sensorless vector control scheme for induction motors using a space phasor based current hysteresis controller<\/strong><\/span><\/li>\n<\/ol>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section bb_built=&#8221;1&#8243; fullwidth=&#8221;off&#8221; specialty=&#8221;off&#8221; transparent_background=&#8221;off&#8221; allow_player_pause=&#8221;off&#8221; inner_shadow=&#8221;off&#8221; parallax=&#8221;off&#8221; parallax_method=&#8221;off&#8221; make_fullwidth=&#8221;off&#8221; use_custom_width=&#8221;off&#8221; width_unit=&#8221;on&#8221; make_equal=&#8221;off&#8221; use_custom_gutter=&#8221;off&#8221; module_id=&#8221;Consultancy&#8221; inner_width=&#8221;auto&#8221; inner_max_width=&#8221;1280px&#8221; prev_background_color=&#8221;#ffffff&#8221; next_background_color=&#8221;#ffffff&#8221;][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; width=&#8221;80%&#8221; max_width=&#8221;1280px&#8221;][et_pb_column type=&#8221;4_4&#8243; custom_padding__hover=&#8221;|||&#8221; custom_padding=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Major Consultancy Projects&#8221; background_layout=&#8221;light&#8221; text_orientation=&#8221;justified&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;]<\/p>\n<h3><a name=\"proj\"><\/a>Major Consultancy Projects<\/h3>\n<p align=\"justify\">Design and Development activities at CEDT are always according to the industrial requirements and as a result Dr. K. Gopakumar has associated with the following consultancy projects.<\/p>\n<ol>\n<li><span style=\"color: #000080\"><strong>A four quadrant digital controller design for a DC drive<\/strong><\/span> Consulting firm &#8211; NGEF Ltd. -Duration (Oct. &#8211; 93 to June &#8211; 95) The task was to design and develop, the speed and current control loop, converter control circuit for four quadrant operation, field converter control circuit and the monitoring and protection circuit<\/li>\n<li><span style=\"color: #000080\"><strong>Sensorless speed control of induction motor<\/strong><\/span> &#8211; Consulting firm &#8211; Infosys Technologies Ltd. (July &#8211; 94 to Aug. &#8211; 95) The task was to give technical advise on a high performance drive control scheme using terminal voltage and current measurements only<\/li>\n<li><span style=\"color: #000080\"><strong>General purpose power converter, controller using single chip microcontrollers<\/strong><\/span>. Consulting firm &#8211; BHEL. (Aug. &#8211; 93 to May &#8211; 95). The task was to design and develop a converter control circuit using 80C 196 microcontroller<\/li>\n<li><span style=\"color: #000080\"><strong>AC variable speed drive<\/strong><\/span> &#8211; Consulting firm &#8211; JVS Electronic Ltd. (Oct. &#8211; 94 &#8211; Mar. &#8211; 96). The task is to give design details, including the appropriate circuit diagrams for a 5hp induction motor inverter power circuit and the controllers<\/li>\n<li><span style=\"color: #000080\"><strong>Variable frequency AC drive for induction motor. &#8211; IPA Pvt. Ltd.<\/strong><\/span> (Nov. &#8211; 94 &#8211; Mar &#8211; 96) The task is to design and develop a variable speed induction motor inverter drive control and protection circuits<\/li>\n<li><span style=\"color: #000080\"><strong>3KVA on line UPS. &#8211; Foresight Power Systems Pvt. Ltd.<\/strong><\/span> (Feb. &#8211; 95 -Apr. 96). This involves the design and development of the battery charger, inverter and the filter circuits with appropriate control and protection circuits.<\/li>\n<li><strong><span style=\"color: #000080\">Feasibility study for Electric Three &#8211; Wheeler Vehicles. DASAG Energy Engineering Ltd. Seuzach, Switzerland, &#8211; (Jan. &#8211; 96)<\/span> <\/strong><\/li>\n<li><span style=\"color: #000080\"><strong>A Regenerative Electronic load<\/strong>;<\/span> Here the three phase out put is rectified and then fed to the mains through a phase controlled converter in the inversion mode. The project is completed and is funded by the Department of electronics, Govt. of India.<\/li>\n<li><span style=\"color: #000080\"><strong>Studies on Multi level inverter fed Induction motor drive schemes with common mode voltage elimination for Induction motor drives<\/strong>:<\/span> Department of Science and Technology-2004<\/li>\n<li><span style=\"color: #000080\"><strong>Control and drive developments for a four wheeler EV<\/strong><\/span>: Development of the DSP platform and design and development of a sensorless field oriented control algorithm for the induction motor drive: the project is funded by General Motors, USA-June-2005<\/li>\n<li><span style=\"color: #000080\"><strong>A five-level inverter scheme with common mode voltage suppression and DC link capacitor balancing for induction motor drives for high power applications by cascading two-level an dthree-level inverter structures- <\/strong><\/span>:Department of Science and Technology-2006-20Lakhs<\/li>\n<li><strong><span style=\"color: #000080\">A multi-level 12-sided polygonal voltage space vector structure for high power induction motor drive applications by cascading the conventional two-level and three-level inverters.<\/span> <\/strong>: &#8211; Department of Science and Technology-2008.-30lakhs<\/li>\n<li><span style=\"color: #000080\"><strong>Design and development of a three-level inverter for aircraft applications- <\/strong><\/span>: Honeywell India- Rs.15 Lakhs<\/li>\n<\/ol>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section bb_built=&#8221;1&#8243; fullwidth=&#8221;off&#8221; specialty=&#8221;off&#8221; transparent_background=&#8221;off&#8221; allow_player_pause=&#8221;off&#8221; inner_shadow=&#8221;off&#8221; parallax=&#8221;off&#8221; parallax_method=&#8221;off&#8221; make_fullwidth=&#8221;off&#8221; use_custom_width=&#8221;off&#8221; width_unit=&#8221;on&#8221; make_equal=&#8221;off&#8221; use_custom_gutter=&#8221;off&#8221; module_id=&#8221;Journal&#8221; inner_width=&#8221;auto&#8221; inner_max_width=&#8221;1280px&#8221; prev_background_color=&#8221;#ffffff&#8221; next_background_color=&#8221;#ffffff&#8221;][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; 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header_text_shadow_blur_strength_tablet=&#8221;1px&#8221; header_2_text_shadow_horizontal_length=&#8221;header_2_text_shadow_style,%91object Object%93&#8243; header_2_text_shadow_horizontal_length_tablet=&#8221;0px&#8221; header_2_text_shadow_vertical_length=&#8221;header_2_text_shadow_style,%91object Object%93&#8243; header_2_text_shadow_vertical_length_tablet=&#8221;0px&#8221; header_2_text_shadow_blur_strength=&#8221;header_2_text_shadow_style,%91object Object%93&#8243; header_2_text_shadow_blur_strength_tablet=&#8221;1px&#8221; header_3_text_shadow_horizontal_length=&#8221;header_3_text_shadow_style,%91object Object%93&#8243; header_3_text_shadow_horizontal_length_tablet=&#8221;0px&#8221; header_3_text_shadow_vertical_length=&#8221;header_3_text_shadow_style,%91object Object%93&#8243; header_3_text_shadow_vertical_length_tablet=&#8221;0px&#8221; header_3_text_shadow_blur_strength=&#8221;header_3_text_shadow_style,%91object Object%93&#8243; header_3_text_shadow_blur_strength_tablet=&#8221;1px&#8221; 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header_6_text_shadow_horizontal_length_tablet=&#8221;0px&#8221; header_6_text_shadow_vertical_length=&#8221;header_6_text_shadow_style,%91object Object%93&#8243; header_6_text_shadow_vertical_length_tablet=&#8221;0px&#8221; header_6_text_shadow_blur_strength=&#8221;header_6_text_shadow_style,%91object Object%93&#8243; header_6_text_shadow_blur_strength_tablet=&#8221;1px&#8221; box_shadow_horizontal_tablet=&#8221;0px&#8221; box_shadow_vertical_tablet=&#8221;0px&#8221; box_shadow_blur_tablet=&#8221;40px&#8221; box_shadow_spread_tablet=&#8221;0px&#8221; vertical_offset_tablet=&#8221;0&#8243; horizontal_offset_tablet=&#8221;0&#8243; z_index_tablet=&#8221;0&#8243;]<\/p>\n<h3><a name=\"jp\"><\/a>List of Publications &#8211; Journal<\/h3>\n<ol>\n<li><span style=\"color: #000000\">A Single DC Source Multilevel Inverter for Drives With Increasing Linear Modulation Range and Fault Tolerant Capability,V. T. Pardhi, R. Pottekkat, V. R. S., K. Gopakumar, L. Umanand and D. Zielinski,<\/span><strong> <span style=\"color: #000080\">in <em>IEEE Transactions on Industrial Electronics<\/em>, vol. 72, no. 8, pp. 7816-7825, Aug. 2025, doi: 10.1109\/TIE.2025.3532615<\/span>.<\/strong><\/li>\n<li><span style=\"color: #000000\">Modulating and Level-Shifted Carrier-Based DSV-PWM Technique With Fifth and Seventh Order Harmonic Elimination for Multilevel Split-Phase OEIM Drive,N. S. Sundar S., V. R. S., V. Jain, K. Gopakumar, L. Umanand and D. Zielinski,<\/span>\u00a0<strong><span style=\"color: #000080\">in\u00a0<em>IEEE Transactions on Industrial Electronics<\/em>, vol. 72, no. 11, pp. 11172-11180, Nov. 2025, doi:10.1109\/TIE.2025.3563707<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">A Five-Level Inverter Topology With Extended Linear Modulation Range Till Full Base Speed Irrespective of Load Power Factor,Vivek R. S, T. Debnath, K. Gopakumar, U. Loganathan and D. Zielinski<\/span>, <span style=\"color: #000080\"><strong>in <em>IEEE Transactions on Industrial Electronics<\/em>,\u00a0vol. 71, no. 8, pp. 8373-8382, Aug. 2024, doi: 10.1109\/TIE.2023.3323740<\/strong><\/span><\/li>\n<li><span style=\"color: #000000\">Synthesis of a Modulating Waveform for a Carrier-Based Dodecagonal Space Vector PWM Signal Generation for a Split-Phase Induction Motor Drive,N. S. Sundar S., P. Surana, V. R. S., V. T. P., K. Gopakumar and L. Umanand<\/span> <span style=\"color: #000080\"><strong>in <em>IEEE Transactions on Industrial Electronics<\/em>, vol. 71, no. 12, pp. 15415-15423, Dec. 2024, doi: 10.1109\/TIE.2024.3390720<\/strong><\/span><\/li>\n<li><span style=\"color: #000000\">\u00a0A Single DC Source Multilevel Inverter With Extended Linear Modulation Range to the Full Base Speed and Predictive Capacitor Control for Induction Machine Drives,R. Pottekkat, V. R. S., R. Resalayyan, K. Gopakumar, L. Umanand and B. S. Reddy<\/span>,<strong> <span style=\"color: #000080\">in <em>IEEE Journal of Emerging and Selected Topics in Industrial Electronics<\/em>, vol. 6, no. 1, pp. 126-134, Jan. 2025, doi: 10.1109\/JESTIE.2024.3384920<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">Modulating and Carrier-Based Dodecagonal Space Vector Pulse Width Modulation Technique With Fifth and Seventh Order Harmonic Elimination for Split-Phase :Nair Syam Sundar S., Prashant Surana, Rohith Pottekkat ,Vivek R. S, K. Gopakumar , and\u00a0 L.Umanand, in <span style=\"color: #000080\"><strong><em>IEEE Transactions on Power Electronics<\/em>, vol. 40, no. 1, pp. 1787-1796, Jan. 2025, doi: 10.1109\/TPEL.2024.3467330<\/strong><\/span><\/span><\/li>\n<li><span style=\"color: #000000\">A Reduced Switch Count Five Level Inverter with Extended Linear Modulation Range up to Full Base Speed, Vivek R. S, T. Debnath, K. Gopakumar, U. Loganathan and D. Zielinski, in<\/span> <strong><span style=\"color: #000080\">IEEE Journal of Emerging and Selected Topics in Power Electronics, doi: 10.1109\/JESTPE.2023.3333031.<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">A Variable Speed Induction Motor Drive With 24-Stepped Voltage Waveform Throughout Modulation Range, P. Surana, K. Gopakumar, L. Umanand, K. Rajashekara and L. G. Franquelo, in<\/span> <strong><span style=\"color: #000080\">IEEE Transactions on Industrial Electronics, vol. 71, no. 2, pp. 1268-1276, Feb. 2024, doi: 10.1109\/TIE.2023.3260354.<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">\u00a0A Generalized Multilevel Inverter With Extended Linear Modulation Range and Instantaneously Balanced DC-Link Series Capacitors for an Induction Motor Drive, T. Debnath, K. Gopakumar, L. Umanand, K. RajaShekara and D. Zielinski,<\/span> <strong><span style=\"color: #000080\">in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 11, no. 2, pp. 2104-2113, April 2023, doi: 10.1109\/JESTPE.2022.3223096.<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">\u00a0A Hybrid Seven-Level Dual-Inverter Scheme With Reduced Switch Count and Increased Linear Modulation Range, S. Pal, K. Gopakumar, U. Loganathan, H. Abu-Rub and D. Zielinski, in<\/span> <span style=\"color: #000080\"><strong>IEEE Transactions on Power Electronics, vol. 38, no. 2, pp. 2013-2021, Feb. 2023, doi: 10.1109\/TPEL.2022.3217439.<\/strong><\/span><\/li>\n<li><span style=\"color: #000000\">\u00a0Modulating Wave-Based Timing Calculation for a Multilevel 24-Sided Polygonal Voltage Space Vector Structure With Similar Triangles, Surana, Prashant and Majumder, Mriganka Ghosh and Imthias, Mohammed and Resalayyan, Rakesh and Gopakumar, K. and Umanand, Loganathan and Zielinski, Dariusz, in<\/span> <strong><span style=\"color: #000080\">IEEE Journal of Emerging and Selected Topics in Industrial Electronics, vol. 4, no. 1, pp. 219-227, Jan. 2023, doi: 10.1109\/JESTIE.2022.3165993<\/span><\/strong>.<\/li>\n<li><span style=\"color: #000000\">A Nine-Level Inverter With Single DC-Link and Low-Voltage Capacitors as Stacked Voltage Sources With Capacitor Voltage Control Irrespective of Load Power Factor, T. Debnath, K. Gopakumar, L. Umanand, D. Zielinski and K. Rajashekara, in<\/span><strong><span style=\"color: #000080\"> IEEE Open Journal of the Industrial Electronics Society, vol. 3, pp. 522-536, 2022, doi: 10.1109\/OJIES.2022.3209333.<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">A Fault-Tolerant Inverter Circuit to Generate Thirteen-Level 24-Sided Voltage Space Vector Structure for Open-End Winding Induction Motor Drive, P. Surana, M. G. Majumder, R. Resalayyan, K. Gopakumar, L. Umanand and D. Zielinski, in <\/span><strong><span style=\"color: #000080\">IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 10, no. 6, pp. 7539-7548, Dec. 2022, doi: 10.1109\/JESTPE.2022.3170040.<\/span><\/strong><\/li>\n<li>\u00a0<span style=\"color: #000000\">A Fault-Tolerant 24-Sided Voltage Space Vector Structure for Open-End Winding Induction Motor Drive, P. Surana, M. G. Majumder, R. Resalayyan, K. Gopakumar, L. Umanand and W. Jarzyna<\/span>,<strong><span style=\"color: #000080\"> IEEE Transactions on Power Electronics, vol. 37, no. 9, pp. 10738-10746, Sept. 2022, doi: 10.1109\/TPEL.2022.3167161.<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">\u00a0A Multilevel Inverter for Instantaneous Voltage Balancing of Single Sourced Stacked DC-Link Capacitors for an Induction Motor Load<\/span>, <span style=\"color: #000000\">T. Debnath, R. Resalayyan, M. Imthias, K. Gopakumar, L. Umanand and W. Jarzyna,<\/span>\u00a0<strong><span style=\"color: #000080\"> IEEE Transactions on Power Electronics, vol. 37, no. 9, pp. 10633-10641, Sept. 2022<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">A general Multilevel Polygonal Space Vector Generation scheme with reduced switching for the inverter and harmonic suppression using a switched-capacitive filter for the full modulation range,R. Dewani, K. Gopakumar, U. Loganathan and S. Bhattacharya<\/span>,<span style=\"color: #000080\"><strong>\u00a0IEEE Transactions on Power Electronics, vol. 37, no. 7, pp. 8167-8176, July 2022<\/strong><\/span>.<\/li>\n<li><span style=\"color: #000000\">A single D.C. link Multi-level 42-sided polygonal Voltage Space Vector Generation with lower order harmonic suppression using Switched-Capacitive filter, R. Dewani, K. Gopakumar, U. Loganathan, L. G. Franquelo and K. Rajashekara,<\/span> <span style=\"color: #000080\"><strong>IEEE Transactions on Industrial Electronics, vol. 69, no. 12, pp. 12369-12378, Dec. 2022.<\/strong><\/span><\/li>\n<li><span style=\"color: #000000\">A Ten Level Inverter Fed Drive Scheme with Extended Linear Modulation Range,Souradeep Pal;Mriganka Ghosh Majumder;Rakesh R;K. Gopakumar;Umanand Loganathan;Mariusz Malinowski;Dariusz Zielinski,<\/span><strong><span style=\"color: #000080\"> IEEE Transactions on Industrial Electronics, vol. 69, no. 12, pp. 12261-12269, Dec. 2022.<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">A Multilevel Inverter with Inherent Common Coupling Point Voltage Balancing of Stacked Capacitors across a Single DC-Link for Induction Motor Drives, Tutan Debnath;Rakesh R;Mriganka Ghosh Majumder;Mohammed Imthias;K. Gopakumar;Umanand Loganathan;Leopoldo Garcia Franquelo<\/span>, \u00a0<span style=\"color: #000080\"><strong> IEEE Transactions on Industrial Electronics, vol. 69, no. 12, pp. 12496-12505, Dec. 2022<\/strong>.<\/span><\/li>\n<li>\n<div class=\"description text-base-md-lh\"><span style=\"color: #000000\">A Dense Multilevel 30-Sided Space Vector Generation Using a Single DC Link for an Induction Motor Drive,R. R, M. G. Majumder, K. Gopakumar, L. Umanand, C. Cecati and D. Zielinski,<\/span>\u00a0<strong><span style=\"color: #000080\"> IEEE Transactions on Power Electronics, vol. 36, no. 10, pp. 11681-11690, Oct. 2021, doi: 10.1109\/TPEL.2021.3070078.<\/span><\/strong><\/div>\n<\/li>\n<li><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/9339961\/\">A Very High Resolution 30-Sided Space Vector Generation from a Single DC-link for Induction Motor Drives<\/a>:<a style=\"color: #000000\"><span class=\"highlight\">Rakesh<\/span>\u00a0R<\/a>;<a style=\"color: #000000\">Mriganka Ghosh Majumder<\/a>;<a style=\"color: #000000\">Rahul Dewani<\/a>;<a style=\"color: #000000\">K.\u00a0<span class=\"highlight\">Gopakumar<\/span><\/a>;<a style=\"color: #000000\">Umanand Loganathan<\/a>;<a style=\"color: #000000\">Wojciech Jarzyna<\/a>;<a style=\"color: #000000\">Leopoldo Garcia Franquelo:<span style=\"color: #000080\"><strong> IEEE Transactions on Industrial Electronics, vol. 69, no. 1, pp. 160-168, Jan. 2022, doi: 10.1109\/TIE.2021.3053884<\/strong><\/span><\/a><\/span><\/li>\n<li><a href=\"https:\/\/ieeexplore.ieee.org\/document\/8985169\/\"><span style=\"color: #000000\">A Fault Tolerant Five-Level Inverter Topology with Reduced Component Count for Open-End IM Drives :<\/span><\/a><span style=\"color: #000000\"><a style=\"color: #000000\">Mriganka Ghosh Majumder<\/a>;<a style=\"color: #000000\">Rakesh R<\/a>;<a style=\"color: #000000\">K.\u00a0<span class=\"highlight\">Gopakumar<\/span><\/a>;<a style=\"color: #000000\">Loganathan Umanand<\/a>;<a style=\"color: #000000\">Kamal Al-Haddad<\/a>;<a style=\"color: #000000\">Wojciech Jarzyna; <span style=\"color: #000080\"><strong>\u00a0IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 9, no. 1, pp. 961-969, Feb. 2021<\/strong><\/span><\/a><\/span><\/li>\n<li><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/9138758\/\">Suppression of Lower Order Harmonics for the full modulation range for a 2-level inverter fed IM drive with a switched capacitive filter technique forming a 42-sided Voltage Space Vector Structure;<\/a><\/span><span style=\"color: #000000\"><a style=\"color: #000000\">Rahul Dewani<\/a>;<a style=\"color: #000000\">Rakesh R<\/a>;<a style=\"color: #000000\">K.\u00a0<span class=\"highlight\">Gopakumar<\/span><\/a>;<a style=\"color: #000000\">Umanand Loganathan<\/a>;<a style=\"color: #000000\">Dariusz Zielinski<\/a>;<a style=\"color: #000000\">Leopoldo Garcia Franquelo; <span style=\"color: #000080\"><strong>IEEE Transactions on Industrial Electronics, vol. 68, no. 8, pp. 6701-6709, Aug. 2021, doi: 10.1109\/TIE.2020.3007079.<\/strong><\/span><\/a><\/span><\/li>\n<li><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/9161411\/\">A Multilevel 30-sided Space Vector Structure with Congruent Triangles and Timing Calculation using only Sampled Reference Voltages ;<\/a><\/span><span style=\"color: #000000\"><a style=\"color: #000000\">Rakesh R<\/a>;<a style=\"color: #000000\">Mriganka Ghosh Majumder<\/a>;<a style=\"color: #000000\">K.\u00a0<span class=\"highlight\">Gopakumar<\/span><\/a>;<a style=\"color: #000000\">Umanand Loganathan<\/a>;<a style=\"color: #000000\">Dariusz Zielinski<\/a>;<a style=\"color: #000000\">Wojciech Jarzyna<\/a>;<a style=\"color: #000000\">Kamal Al-Haddad ;<span style=\"color: #000080\"><strong> IEEE Transactions on Industrial Electronics, vol. 68, no. 9, pp. 7884-7894, Sept. 2021, doi: 10.1109\/TIE.2020.3013527<\/strong><\/span><\/a><\/span><\/li>\n<li><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/9119149\/\">A Cascaded Nine-Level Inverter Topology With T-Type and H-Bridge With Increased DC-Bus Utilization :<\/a><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37086400374\" target=\"_self\" rel=\"noopener noreferrer\">Souradeep Pal<\/a>;<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37086136857\" target=\"_self\" rel=\"noopener noreferrer\">Mriganka Ghosh Majumder<\/a>;<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37088377654\" target=\"_self\" rel=\"noopener noreferrer\">R. Rakesh<\/a>;<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37267452200\" target=\"_self\" rel=\"noopener noreferrer\">K.\u00a0<span class=\"highlight\">Gopakumar<\/span><\/a>;<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37375139000\" target=\"_self\" rel=\"noopener noreferrer\">Loganathan Umanand<\/a>;<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37085618470\" target=\"_self\" rel=\"noopener noreferrer\">Dariusz Zielinski<\/a>;<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37298047900\" target=\"_self\" rel=\"noopener noreferrer\">Abdul R. Beig: <span style=\"color: #000080\"><strong>\u00a0in\u00a0IEEE Transactions on Power Electronics, vol. 36, no. 1, pp. 285-294, Jan. 2021\u00a0<\/strong><\/span><\/a><\/span><\/li>\n<li><span style=\"color: #000000\">Extending the Linear Modulation Range to Full Base Speed Independent of Load Power Factor for a Multilevel inverter fed IM Drive\u00a0Mriganka Ghosh Majumder\u00a0;\u00a0Rakesh R\u00a0;\u00a0Imthias Mohammed\u00a0;\u00a0K.\u00a0<span class=\"highlight\">Gopakumar<\/span>\u00a0;\u00a0Umanand Loganathan\u00a0;\u00a0Wojciech Jarzyn<\/span> <span style=\"color: #000080\"><strong>IEEE Transactions on Industrial Electronics, vol. 67, no. 11, pp. 9143-9152, Nov. 2020<\/strong><\/span><\/li>\n<li><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8770110\/\">A Switched Capacitive Filter based Harmonic Elimination Technique by Generating a 30- Sided Voltage Space Vector Structure for IM Drive<\/a> <a style=\"color: #000000\">Rakesh R\u00a0<\/a>;\u00a0<a style=\"color: #000000\">Krishna raj R\u00a0<\/a>;\u00a0<a style=\"color: #000000\">Apurv Kumar Yadav\u00a0<\/a>;\u00a0<a style=\"color: #000000\">K.\u00a0<span class=\"highlight\">Gopakumar<\/span>\u00a0<\/a>;\u00a0<a style=\"color: #000000\">Umanand Loganathan\u00a0<\/a>;\u00a0<a style=\"color: #000000\">Kouki Matsuse GAE; <strong><span style=\"color: #000080\">IEEE Transactions on Power Electronics, vol. 35, no. 3, pp. 2402-2410, March 2020<\/span><\/strong><\/a><\/span><\/li>\n<li><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8643100\/\">A Five-Level Inverter Scheme Using Single DC Link with Reduced Number of Floating Capacitors and Switches for Open-End IM Drives<span style=\"color: #000000\">:<\/span><\/a><a style=\"color: #000000\">Mriganka Ghosh Majumder\u00a0<\/a><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8643100\/\">;\u00a0<\/a><a style=\"color: #000000\">Apurv Kumar Yadav\u00a0<\/a><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8643100\/\">;\u00a0<\/a><a style=\"color: #000000\">K.\u00a0<span class=\"highlight\">Gopakumar<\/span>\u00a0<\/a><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8643100\/\">;\u00a0<\/a><a style=\"color: #000000\">Krishna Raj R\u00a0<\/a><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8643100\/\">;\u00a0<\/a><a style=\"color: #000000\">Umanand Loganathan\u00a0<\/a><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8643100\/\">;\u00a0<\/a><a style=\"color: #000000\">Leopoldo Garcia Franquelo:<span style=\"color: #000080\"><strong>IEEE Transactions on Industrial Electronics, vol. 67, no. 2, pp. 960-968, Feb. 2020<\/strong><\/span><\/a><\/span><\/li>\n<li><span style=\"color: #000000\">Minimization of Switched Capacitor Voltage\u00a0Ripple in a Multilevel Dodecagonal Voltage\u00a0Space Vector Structure for Drives<\/span><br \/><span style=\"color: #000000\">Mohammed Imthias, Student Member, IEEE, Krishna Raj R, Student Member, IEEE,\u00a0Apurv kumar Yadav, Student Member, IEEE, K. Gopakumar, Fellow, IEEE,\u00a0L. Umanand, and Carlo Cecati, Fellow, IEEE<\/span>; <span style=\"color: #000080\"><strong>IEEE Transactions on Industrial Electronics, vol. 67, no. 1, pp. 126-135, Jan. 2020<\/strong><\/span><\/li>\n<li><span style=\"color: #000000\">A Twelve Concentric Multilevel Twenty-Four Sided Polygonal Voltage Space Vector Structure for Variable Speed Drives : Krishnaraj R; K Gopakumar; Apurv Kumar Yadav; L. Umanand; Mariusz Malinowski; Wojciech Jarzyna <strong><span style=\"color: #000080\">\u00a0IEEE Transaction on Power Electronics,Vol.34, NO.10,Oct 2019,pp.9906-9915<\/span><\/strong><\/span><\/li>\n<li><span style=\"color: #000000\"><a id=\"LPlnk132370\" class=\"x_OWAAutoLink\" style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8598803\/\" target=\"_blank\" rel=\"noopener noreferrer\">A hybrid seven-level inverter using low voltage devices and operation with single DC-link<\/a><a id=\"LPlnk893821\" class=\"x_OWAAutoLink\" style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8360462\/\" target=\"_blank\" rel=\"noopener noreferrer\"><\/a>:\u00a0<span class=\"x_ng-scope\">\u00a0<\/span><span class=\"x_ng-scope\"><a id=\"LPlnk817448\" class=\"x_OWAAutoLink\" style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Apurv%20Kumar%20Yadav.QT.&amp;newsearch=true\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"x_ng-binding\">Apurv Kumar Yadav<\/span><\/a>; K. Gopakumar<\/span><span class=\"x_ng-scope\"><a id=\"LPlnk369519\" class=\"x_OWAAutoLink\" style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Leopoldo%20Garcia%20Franquelo.QT.&amp;newsearch=true\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"x_ng-binding\">; Krishnaraj R; L.Umanand; Subhashish Bhattacherya;\u00a0<\/span><\/a><\/span><a id=\"LPlnk337783\" class=\"x_OWAAutoLink\" style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Sheldon%20S.%20Williamson.QT.&amp;newsearch=true\" target=\"_blank\" rel=\"noopener noreferrer\"><\/a>Wojciech jarzyna <span style=\"color: #000080\"><strong>\u00a0<a id=\"LPlnk420599\" class=\"x_ng-binding x_ng-scope x_OWAAutoLink\" style=\"color: #000080\" href=\"https:\/\/ieeexplore.ieee.org\/xpl\/RecentIssue.jsp?punumber=41\" target=\"_blank\" rel=\"noopener noreferrer\">IEEE Transactions onPower electronics-2019,Vol.34,No.10,Oct 2019,pp.9844-9853<\/a><\/strong><\/span><\/span><\/li>\n<li><span style=\"color: #000000\"><span style=\"color: #000000\"><a id=\"LPlnk893821\" class=\"x_OWAAutoLink\" style=\"color: #000000\" title=\"Ctrl+Click or tap to follow the link\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8360462\/\" target=\"_blank\" rel=\"noopener noreferrer\">Instantaneous Balancing of Neutral Point Voltages for Stacked DC-link Capacitors of Multilevel Inverter for Dual Inverter fed Induction Motor Drives<\/a>:\u00a0<span class=\"x_ng-scope\">\u00a0<\/span><span class=\"x_ng-scope\"><a id=\"LPlnk817448\" class=\"x_OWAAutoLink\" style=\"color: #000000\" title=\"Ctrl+Click or tap to follow the link\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Apurv%20Kumar%20Yadav.QT.&amp;newsearch=true\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"x_ng-binding\">Apurv Kumar Yadav<\/span><\/a>; K. Gopakumar<\/span><span class=\"x_ng-scope\"><a id=\"LPlnk369519\" class=\"x_OWAAutoLink\" style=\"color: #000000\" title=\"Ctrl+Click or tap to follow the link\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Leopoldo%20Garcia%20Franquelo.QT.&amp;newsearch=true\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"x_ng-binding\">; Krishnaraj R; L.Umanand; Kouki Matsuse; Hisao Kubota<\/span><\/a><\/span><a id=\"LPlnk337783\" class=\"x_OWAAutoLink\" style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Sheldon%20S.%20Williamson.QT.&amp;newsearch=true\" target=\"_blank\" rel=\"noopener noreferrer\"><\/a>\u00a0<span style=\"color: #000080\"><strong>\u00a0<a class=\"x_ng-binding x_ng-scope x_OWAAutoLink\" style=\"color: #000080\" title=\"Ctrl+Click or tap to follow the link\" href=\"https:\/\/ieeexplore.ieee.org\/xpl\/RecentIssue.jsp?punumber=41\" target=\"_blank\" rel=\"noopener noreferrer\">IEEE Transactions on Power electronics-2019,<\/a>Vol:34,Issue:3, pages 2505-2514<\/strong><\/span><\/span><\/span><a id=\"LPlnk420599\" class=\"x_ng-binding x_ng-scope x_OWAAutoLink\" style=\"color: #000080\" title=\"Ctrl+Click or tap to follow the link\" href=\"https:\/\/ieeexplore.ieee.org\/xpl\/RecentIssue.jsp?punumber=41\" target=\"_blank\" rel=\"noopener noreferrer\"><\/a><\/li>\n<li><span style=\"color: #333333\"><a class=\"ng-binding ng-scope\" style=\"color: #333333\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8352011\/\">Multilevel Twenty-Four Sided Polygonal Voltage Space Vector Structure Generation for IM Drive Using Single DC Source<\/a>:\u00a0<span class=\"ng-scope\"><a style=\"color: #333333\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Krishna%20Raj%20R.QT.&amp;newsearch=true\"><span class=\"ng-binding\">Krishna Raj R<\/span><\/a>;\u00a0<\/span><span class=\"ng-scope\"><a style=\"color: #333333\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.K.%20Gopakumar.QT.&amp;newsearch=true\"><span class=\"ng-binding\">K. Gopakumar<\/span><\/a>;\u00a0<\/span><span class=\"ng-scope\"><a style=\"color: #333333\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Mathews%20Boby.QT.&amp;newsearch=true\"><span class=\"ng-binding\">Mathews Boby<\/span><\/a>;\u00a0<\/span><span class=\"ng-scope\"><a style=\"color: #333333\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Apurv%20Kumar%20Yadav.QT.&amp;newsearch=true\"><span class=\"ng-binding\">Apurv Kumar Yadav<\/span><\/a>;\u00a0<\/span><span class=\"ng-scope\"><a style=\"color: #333333\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Leopoldo%20Garcia%20Franquelo.QT.&amp;newsearch=true\"><span class=\"ng-binding\">Leopoldo Garcia Franquelo<\/span><\/a>;\u00a0<\/span><span class=\"ng-scope\"><a style=\"color: #333333\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Sheldon%20S.%20Williamson.QT.&amp;newsearch=true\"><span class=\"ng-binding\">Sheldon S. Williamson<\/span><\/a><\/span><\/span><strong><strong>\u00a0<span style=\"color: #000080\">\u00a0<a class=\"ng-binding ng-scope\" style=\"color: #000080\" href=\"https:\/\/ieeexplore.ieee.org\/xpl\/RecentIssue.jsp?punumber=41\">IEEE Transactions on Industrial Electronics<\/a>-2019.Vol.66,issue:2, Pages1023-1031.<\/span><\/strong><\/strong><\/li>\n<li>Seventeen-Level Inverter with Low Component Count for Open-End IM Drives, Abhijit K,Sudharshan.K,Arun Rahul,Gopakumar,Umanand.L,Sujit k Biswas, Carlo Cecati;\u00a0<strong><strong><span style=\"color: #000080\">IET Transactions on Power Electronics,2017,<\/span><\/strong><span style=\"color: #000080\">Year: 2018<span class=\"ng-scope\"><span class=\"ng-binding ng-scope\">,\u00a0Volume: 11<\/span>,\u00a0<a style=\"color: #000080\" href=\"https:\/\/ieeexplore.ieee.org\/xpl\/tocresult.jsp?isnumber=8338185\">Issue:\u00a0<span class=\"ng-binding\">5<\/span><\/a>,\u00a0<\/span>Pages:\u00a0<span class=\"ng-binding ng-scope\">922<\/span>\u00a0&#8211;\u00a0<span class=\"ng-binding ng-scope\">929<\/span><\/span><\/strong><\/li>\n<li>Generation of high resolution 12-sided voltage space vector structure using low voltage stacked and cascaded basic inverter cells;Apurv kumar Yadav, Mathews bobby, Sumit Pramanick,Gopakumar, Umanand. L, leopoldo Franquelo;<strong><strong><span style=\"color: #000080\">IEEE Transactions on Power Electronics,2018, Vol.33,Issue:9,pages 7349-7358<\/span><\/strong><\/strong><strong><span style=\"color: #000080\">\u00a0.<\/span><\/strong><\/li>\n<li>A Very High Resolution Stacked Multilevel Inverter Topology for Adjustable Speed Drives Viju Nair R, K. Gopakumar, Fellow, IEEE, Leopoldo G. Franquelo, Fellow, IEEE; <span style=\"color: #000080\"><strong>I<a class=\"ng-binding ng-scope\" style=\"color: #000080\" href=\"http:\/\/ieeexplore.ieee.org\/xpl\/RecentIssue.jsp?punumber=41\">EEE Transactions on Industrial Electronics,<\/a> <span class=\"ng-binding ng-scope\">Volume: 65<\/span><span class=\"ng-scope\">, <a style=\"color: #000080\" href=\"http:\/\/ieeexplore.ieee.org\/xpl\/tocresult.jsp?isnumber=8214929\">Issue: <span class=\"ng-binding\">3, <\/span><\/a><\/span><\/strong><\/span><span class=\"ng-scope\"><span style=\"color: #000080\"><strong>Pages: <span class=\"ng-binding ng-scope\">2049<\/span> &#8211; <\/strong><\/span><span class=\"ng-binding ng-scope\"><span style=\"color: #000080\"><strong>2056,March 2018.<\/strong><\/span><br \/><\/span><\/span><\/li>\n<li><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8290708\/\">A New Two-Phase Five-Level Converter for Three-Phase Isolated Grid-Tied Systems With Inherent Capacitor Balancing and Reduced Component Count;<\/a><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37086429700\">B. Satish Naik\u00a0<\/a>;\u00a0<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37375139000\">L. Umanand\u00a0<\/a>;\u00a0<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37267452200\">K.\u00a0<span class=\"highlight\">Gopakumar<\/span>\u00a0<\/a>;\u00a0<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37085367792\">B. Subba Reddy;<\/a><span style=\"color: #000080\"><strong><a style=\"color: #000080\" href=\"https:\/\/ieeexplore.ieee.org\/xpl\/RecentIssue.jsp?punumber=6245517\">IEEE Journal of Emerging and Selected Topics in Power Electronics;<\/a>Year: 2018\u00a0,\u00a0Volume: 6\u00a0,\u00a0<a style=\"color: #000080\" href=\"https:\/\/ieeexplore.ieee.org\/xpl\/tocresult.jsp?isnumber=8428688\">Issue:\u00a03 ;<\/a>Page\u00a0s:\u00a01325\u00a0&#8211;\u00a01335.<\/strong><\/span><\/span><\/li>\n<li><a href=\"https:\/\/ieeexplore.ieee.org\/document\/8252689\/\"><span style=\"color: #000000\">A Two-Phase Five-Level Converter With Least Number of Power Switches Requiring Only a Single DC Source ;<\/span><\/a><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37086229615\">B. Satish Naik\u00a0<\/a>;\u00a0<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37375139000\">L. Umanand\u00a0<\/a>;\u00a0<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37267452200\">K.\u00a0<span class=\"highlight\">Gopakumar<\/span>\u00a0<\/a>;\u00a0<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37085783352\">B. Subba Reddy<span style=\"color: #000080\"><strong>;<\/strong><\/span><\/a><\/span><span style=\"color: #000080\"><strong><a style=\"color: #000080\" href=\"https:\/\/ieeexplore.ieee.org\/xpl\/RecentIssue.jsp?punumber=6245517\">IEEE Journal of Emerging and Selected Topics in Power Electronics;<\/a>Year: 2018\u00a0,\u00a0Volume: 6\u00a0,\u00a0<a style=\"color: #000080\" href=\"https:\/\/ieeexplore.ieee.org\/xpl\/tocresult.jsp?isnumber=8515215\">Issue:\u00a04,<\/a>Page\u00a0s:\u00a01942\u00a0&#8211;\u00a01952<\/strong><\/span><\/li>\n<li>A Low Order Harmonic Elimination Scheme For Induction Motor Drives Using a Multilevel Octadecagonal Space Vector Structure With a Single DC Source;Mathews Boby;K.Gopakumar; Arun Rahul; Umanand; Subhashish. Bhattacharya; frede Blaabjerg; <span style=\"color: #000080\"><strong><a class=\"ng-binding ng-scope\" style=\"color: #000080\" href=\"http:\/\/ieeexplore.ieee.org\/xpl\/RecentIssue.jsp?punumber=63\">IEEE Transactions on Power Electronics<\/a>,<span class=\"ng-binding ng-scope\"> Volume: 33<\/span><span class=\"ng-scope\">, <a style=\"color: #000080\" href=\"http:\/\/ieeexplore.ieee.org\/xpl\/tocresult.jsp?isnumber=8126282\">Issue: <span class=\"ng-binding\">3, <\/span><\/a><\/span><span class=\"ng-scope\">Pages: <span class=\"ng-binding ng-scope\">2430<\/span> &#8211; <span class=\"ng-binding ng-scope\">2437<\/span><\/span> ,March 2018<\/strong><\/span>.<\/li>\n<li>A 24 sided volatge space vector based IM drive with low order harmonic elimination for the full speed range;Krishna Raj; K.Gopakumar ;Mathews Boby;Mariusz malinowski; Marek jasenki, <span style=\"color: #000080\"><span style=\"color: #000080\"><strong>IEEE Transactions on industrial Electronics,<\/strong><\/span><\/span><span style=\"color: #000080\"><strong><span class=\"ng-binding ng-scope\"> Volume: 64<\/span><span class=\"ng-scope\">, <a style=\"color: #000080\" href=\"http:\/\/ieeexplore.ieee.org\/xpl\/tocresult.jsp?isnumber=8062949\">Issue: <span class=\"ng-binding\">11,<\/span><\/a>Pages: <span class=\"ng-binding ng-scope\">8437<\/span> &#8211; <span class=\"ng-binding ng-scope\">8445,2017.<\/span><\/span><\/strong><\/span><\/li>\n<li>Novel symmetric six phase induction motor drive using stacked multilevel inverters witha single DC link and neutral point voltage balancing;Viju Nair;Arun rahul.S;Sumit Pramanick K. Gopakumar; Leopoldo Franquelo,<strong><span style=\"color: #000080\"> IEEE Transactions on industrial Electronics, Vol.64,no.4,: PP.2663-2670,\u00a0 April.2017.<\/span> <\/strong><\/li>\n<li>Extending the Linear Modulation Range to the Full Base Speed Using a Single DC Link Multilevel Inverter with Capacitor Fed H-Bridges for IM drives;Arun R. S.; Sumit Pramanick; R.S. Kaarthik; K. Gopakumar; Frede Blaabjerg,\u00a0<strong><span style=\"color: #000080\"> IEEE Transactions on Power Electronics,, Vol.32,no.7, PP.5450-5458,July.2017.<\/span> <\/strong><\/li>\n<li>Low Switch Count Nine Level Inverter Topology for Open End Induction Motor Drives; A. Kshirsagar; R. S. Kaarthik; K. Gopakumar; L. Umanand; K. Rajashekara,\u00a0<strong><span style=\"color: #000080\"> IEEE Transactions on Industrial Electronics,Vol.64,no.2 PP.1009-1017,\u00a0 Feb.2017.<\/span> <\/strong><\/li>\n<li>Extended Linear Modulation Operation of a Common Mode Voltage Eliminated Cascaded Multilevel Inverter with a Single DC supply; Arun Rahul S; Sumit Pramanick; Mathews Boby; K. Gopakumar; Leopoldo G. Franquelo .<span style=\"color: #000080\"><strong> IEEE Transactions on Industrial Electronics,Vol.32,no.7 PP.5450-5458,Jul.2017.<\/strong><\/span><\/li>\n<li>A Harmonic Suppression Scheme for Full Speed Range of a Two Level Inverter Fed Induction Motor Drive using Switched Capacitive Filter; Sumit Pramanick; Sudharshan Kaarthik; Najath Abdulazeez; K. Gopakumar; Sheldon Williamson; Kaushik Rajashekara.<strong><span style=\"color: #000080\"> IEEE Transactions on Power Electronics,Vol.32,no.3, PP.2064-2071,\u00a0 march.2017.<\/span> <\/strong><\/li>\n<li>Generation of Higher Number of Voltage Levels by Stacking Inverters of Lower Multilevel Structures with Low Voltage Devices for Drives ; Viju Nair R., Arun Rahul S., Kaarthik S., Kshirsagar A. and Gopakumar K..<strong><span style=\"color: #000080\"> IEEE Transactions on Power Electronics,Vol.32,no.1 PP.52-59,Jan.2017.<\/span> <\/strong><\/li>\n<li>Fifth and Seventh Order Harmonic Elimination with Multilevel Dodecagonal Voltage Space Vector Structure for IM Drive Using a Single DC Source for the Full Speed Range ; Boby M., Pramanick S., Kaarthik S., Rahul S.A., Umanand L. and Gopakumar K..\u00a0<strong><span style=\"color: #000080\"> IEEE Transactions on Power Electronics,Vol.32,no.1 PP.60-68, Jan.2017<\/span> <\/strong><\/li>\n<li>A Predictive Capacitor Voltage Control of a Hybrid Cascaded Multilevel Inverter With a Single DC link and With Reduced Common Mode Voltage Operation; Arun Rahul S; Sudharshan Kaarthik; K. Gopakumar; Leopoldo G. Franquelo; Jose I. Leon..\u00a0<strong><span style=\"color: #000080\"> IEEE Transactions on Industrial Electronics,Vol.63,no.8, PP.5285-5292, Aug.2016.<\/span> <\/strong><\/li>\n<li>A 3-Level Dodecagonal Space Vector based Harmonic Suppression Scheme for Open-End Winding IM Drives with Single DC Supply ; Pramanick S., Boby M., Najath Abdul Azeez, Gopakumar K. and Williamson S.<span style=\"color: #000080\"><strong> IEEE Transactions on Industrial Electronics,Vol.63.no.11, PP.7226-7233, Nov.2016.<\/strong><\/span><\/li>\n<li>Multilevel Dodecagonal Voltage Space Vector Structure Generation for Open-end Winding IM using a Single DC Source ; Boby M.,Pramanick S., Kaarthik S., Rahul S. A., Umanand L. and K. Gopakumar.<strong><span style=\"color: #000080\"> IEEE Transactions on Industrial Electronics,Vol.63,no.5 PP.2757-2765 , May-2016.<\/span> <\/strong><\/li>\n<li>Timing calculations for a general N-level dodecagonal space vector structure using only reference phase voltages; R. Sudharshan Kaarthik, K. Gopakumar, Carlo Cecati and Istvan Nagy..<span style=\"color: #000080\"> <strong> IEEE Transactions on Industrial Electronics,Vol-63, no.3,pp.1395-1403,March- 2016.<\/strong><\/span><\/li>\n<li>Reduced common-mode voltage operation of a new seven-level hybrid multilevel inverter topology with a single DC voltage source ; Arun Rahul Sanjeevan, R. Sudharshan Kaarthik, K. Gopakumar, P.P. Rajeevan, Jose I. Leon, Leopoldo G. Franquelo..\u00a0<span style=\"color: #000080\"><strong> IET Transactions on Power Electronics,vol.9,No.3,pp.519-528,3.9 2016. <\/strong><\/span><\/li>\n<li>A Voltage Space Vector Diagram formed by Ninteen Concentric Do decagons for Medium Voltage Induction Motor Drives. Sudharshan Kaarthik ; Gopakumar, K. ; Cecati, C; Istvan nagy.<span style=\"color: #000080\">\u00a0<\/span><strong><span style=\"color: #000080\"> IEEE Transactions on Industrial Electronics, Volume-62, no.11,pp.6748-6755, Nov. 2015.<\/span> <\/strong><\/li>\n<li>Low Order Harmonic Suppression for Open-end Winding IM with Dodecagonal Space Vector using a Single DC-link Supply. Pramanick, S. ; Abdul Azeez, N. ; Kaarthik, S. ; Gopakumar, K. ; Cecati, C..<strong><span style=\"color: #000080\"> IEEE Transactions on Industrial Electronics, Volume 62,no.9,pp 5340-5347, Sep. 2015.<\/span> <\/strong><\/li>\n<li>Medium Voltage Drive for Induction Machine with Multilevel Dodecagonal Voltage Space Vectors with Symmetric triangles. Sudharshan Kaarthik; Gopakumar, K; Mathew, J. ; Undeland, T. <strong><span style=\"color: #000080\"> IEEE Transactions on Industrial Electronics, Volume-62, Page-79-87, Issue: 1,2015<\/span> <\/strong><\/li>\n<li>A Seventeen-Level Inverter formed by Cascading Flying Capacitor and Floating Capacitor H-bridges. Roshan Kumar, P. ; Sudharshan Kaarthik ; Gopakumar, K. ; Leon, J.I. ; Franquelo, L.G.. <strong><span style=\"color: #000080\"> IEEE Transactions on Power Electronics, Volume: 30, Page(s): 3471-3478, Issue: 7,2015<\/span> <\/strong><\/li>\n<li>A Harmonic Suppression Scheme for Open-End Winding Split-Phase IM Drive Using Capacitive Filters, For The Full Speed Range; Najath Abdul Azeez,K Gopakumar,and Carlo Cecati<strong><span style=\"color: #000080\"> IEEE Transactions on IE, Vol-61,issue 10,pp 5213-5221, -2014<\/span> <\/strong><\/li>\n<li>Hysteresis current controller for a general n-level inverter fed drive with online current error boundary computation and nearly constant switching frequency; Anubrata Dey,Najath Abdul Azeez, K.Mathew, K Gopakumar, Marian P Kazmierkowski <strong><span style=\"color: #000080\">IET Power Electron.,Vol.6,No.8 pp. 1640-1649,Sept.2013<\/span> <\/strong><\/li>\n<li>A Three-level Common-mode Voltage Eliminated Inverter With Single DC-Supply Using Flying Capacitor Inverter and Cascaded H-Bridge ; Roshan Kumar, K.Mathew, K Gopakumar, Jose leon and Leopoldo Franquelo<strong><span style=\"color: #000080\"> IEEE Trans On PELs,Vol.29,No.3,pp1402-1409,March -2014<\/span> <\/strong><\/li>\n<li>A Medium Voltage Inverter Fed IM Drive using Multilevel 12-sided polygonal Vectors, with Nearly Constant Switching Frequency Current Hysteresis Controller ; Najath Abdul Azeez,Anubrata Dey, K.Mathew, K Gopakumar and Marian Kazmierkowski<strong><span style=\"color: #000080\"> IEEE Trans On IE,Vol.61,no.4,pp 1700-1709,April-2014<\/span> <\/strong><\/li>\n<li>A nearly constant switching frequency Current Error Space Vector Based Hysteresis Controller for an IM drive with 12-sided polygonal voltage space vectors , Najath Abdul Azeez,Anubrata Dey, K.Mathew,Jaison mathew,and K Gopakumar<strong>\u00a0<span style=\"color: #000080\"> EPE Journal, Volume: 23-4, 2013<\/span> <\/strong><\/li>\n<li>A Reduced Device-Count Hybrid Multilevel Inverter Topology with single DC Source andImproved Fault Tolerance &#8220;,,Rajeevan P.P,and K Gopakumar<span style=\"color: #000080\"> <strong> EPE Journal,Vol.23,no.2,pp-14-23,June-2013 <\/strong><\/span><\/li>\n<li>Nearly Constant Switching Frequency Hysteresis Current controller with fast online computation Of Boundary for a 2-level VSI Fed IM&#8221;,,Anubrata Dey ,K Mathew,K Gopakumar,and Marian P Kazmierkowski<strong><span style=\"color: #000080\"> EPE Journal,Vol23,No.3,2013<\/span> <\/strong><\/li>\n<li>Multilevel Dodecagonal Space Vector Generation for Induction Motor Drives by Cascading 3 Level and 2 Level Inverters &#8220;,K Mathew, Jaison Mathew, Najath Abdul Azeez, Anubrata Dey, L Umanand,K Gopakumar ,<strong><span style=\"color: #000080\"> IET Power Electronics,vol.5,no.8,2012,pp.1324-1332<\/span> <\/strong><\/li>\n<li>A hybrid multilevel inverter system based on dodecagonal space vectors for medium voltage IM drives &#8220;,Jaison Mathew, Member IEEE, Mathew K., Najath Abdul Azeez and Gopakumar K ,<strong><span style=\"color: #000080\"> IEEE Transactions on Power Electronics,vol.28,no.8,2013,pp.3723-3732.<\/span> <\/strong><\/li>\n<li>Medium Voltage Drive for Induction Motors using Multilevel Octadecagonal Voltage Space Vectors &#8220;,K Mathew, Jaison Mathew, Najath Abdul Azeez, Anubrata Dey, L Umanand, K Gopakumar ,<strong><span style=\"color: #000080\"> IEEE Transactions on Industry Trans. On Power Electronics,vol.28,n0.7,2013,pp.3570-3583<\/span> <\/strong><\/li>\n<li>A Hybrid Five-level Inverter with Common Mode Voltage Elimination having Single Voltage Source for IM Drive Applications&#8221;,Rajeevan P.P,K.Gopakumar, <strong><span style=\"color: #000080\"> IEEE Transactions on Industry Applications,vol.48,n0.6,2012,pp.2037-2047.<\/span> <\/strong><\/li>\n<li>A Nine-Level Inverter Topology for Medium Voltage Induction Motor Drive with Open-end Stator Winding&#8221;,Rajeevan P.P,sivakumar,K.Gopakumar,Chintan Patel, Abu-rub haitham <strong><span style=\"color: #000080\"> IEEE Transactions on Industrial Electronics,vol.60,no.9,pp.3627-3636-2013<\/span> <\/strong><\/li>\n<li>A Space Vector based Hysteresis Current Controller for a General n-level Inverter Fed Drive with Nearly Constant Switching Frequency Control&#8221;,Anubrata Dey, Rajeevan P.P,Rijil Ramchand, Mathew.K,K.Gopakumar, <strong><span style=\"color: #000080\"> IEEE Transactions on Inductrial Electronics,vol.60,no.5,2013,pp.1989-1998<\/span> <\/strong><\/li>\n<li>A Multilevel inverter scheme with dodecagonalvoltage space vectors based on flying capacitor topology for induction motor drives,Jaison Mathew,Rajeevan P.P,K.Mathew,Najath Abdul Azeez, K.Gopakumar, <strong><span style=\"color: #000080\"> IEEE Transactions on Power Electronics,vol.8,no.1,2013,pp.516-523.<\/span> <\/strong><\/li>\n<li>A five level inverter topology with single DC-power suply by cascading aflying capacitor inverter and an H-bridge, P.Roshan Kumar,Rajeevan P.P,K.Mathew, K.Gopakumar, Jose.I Leon, Leopoldo G Franquelo, <strong><span style=\"color: #000080\"> IEEE Transactions on Power Electronics,Vol.27,No.8,Aug2012,pp.3505-3513<\/span> <\/strong><\/li>\n<li>Fast Direct Torque Control of Open-end Induction Motor Drive using 12-sided Polygonal Voltage Space Vectors,Chintan Patel,Rajeevan P.P,Anubrata Dey K.Gopakumar, and Marian P Kazmierkowski, K. Sivakumar, <strong><span style=\"color: #000080\"> IEEE Transactions on IE,Vol.27,NO.1,Jan,2012,pp.400-410<\/span> <\/strong><\/li>\n<li>Low Inductance Axial Flux BLDC Motor Drive for More Electric Aircraft, K.Gopakumar,Sukumar De, K. Sivakumar, <strong><span style=\"color: #000080\"> IET Power Electronics , Vol.5,Issue.1,2012,pp.124-133.<\/span> <\/strong><\/li>\n<li>Online Computation of Hysteresis Boundary for Constant Switching Frequency Current Error Space Vector Based Hysteresis Controller for VSI fed IM Drives,Rijil Ramchand, K. Gopakumar,Chintan Patel, K. Sivakumar, Anandarup Das and Abu-Rub Haitham<span style=\"color: #000080\"><strong> IEEE Trans on PELs,Vol.23,NO.3,2012,pp.1521-1529. <\/strong><\/span><\/li>\n<li>An asymmetric cascaded H-Bridge inverters for generating 12-sided polygonal space vector diagrams for Motor drives,Mathew.K,Anandarup Das,Chintan Patel,Rijil Ramchand, Gopakumar.K<strong><span style=\"color: #000080\"> EPE Journal,Vol 21 no 1,2011<\/span> <\/strong><\/li>\n<li>A Seven-level Inverter topology for IM Drive using Two-level Inverters and Floating Capacitor Fed H-Bridges,Rajeevan P.P,K.Sivakumar,Chintan Patel,Rijil Ramchand, Gopakumar.K<strong><span style=\"color: #000080\"> IEEE Trans.on Power electronics,Vol.26,Issue.6,2012,pp.1733-1740.<\/span> <\/strong><\/li>\n<li>Multilevel inverters for low power applications,Sukumar De, Debmalya Banerjee ,K.Sivakumar,Chintan Patel,Rijil Ramchand,Gopakumar.K<strong><span style=\"color: #000080\"> IET, Power electronics,Vol4,Iss.4,pp.384-392,2011<\/span> <\/strong><\/li>\n<li>A rotor flux estimation during zero and active vector periods using current error space vector from a hysteresis controller for a sensorless vector control of IM drve , Chintan Patel,Rijil Ramchand,K.Sivakumar, Anandarup Das,Gopakumar.K<strong><span style=\"color: #000080\"> IEEE Trans. On Industrial Electronics,Vol.58,No.6,June 2011<\/span> <\/strong><\/li>\n<li>Reecent Advances and Industrial Applications of Multilevel converters ,Samir Kouro,Mariusz Malinowski,M.Perez,J I Leon,Gopakumar.K,Joseph Pou,L.G Franquelo,Bin Wu,and Jose Rodriguez<strong><span style=\"color: #000080\"> IEEE Trans. On Industrial Electronics,Vol.57,n0.8,Aug-2010,pp2553-2580<\/span> <\/strong><\/li>\n<li>A hybrid multilevel inverter topology for an open-end winding IM drive using two-level inverters in series with a capaciotr fed H-bridge cell ,K.Sivakumar,Anandarup Das, Rjil Ramchand,Chintan Patel,and K.Gopakumar<strong><span style=\"color: #000080\"> IEEE Trans. On Industrial Electronics,Vol.57,no.11,Nov.2010,pp.3707-3815<\/span> <\/strong><\/li>\n<li>A Volatge space vector structure formed by six concentric dodecagons for IM drives. , Anandarup Das,and K.Gopakumar,<strong><span style=\"color: #000080\"> IEEE Trans. on Power electronics,Vol25,no.6,June 2010,pp1480 &#8211; 1487<\/span> <\/strong><\/li>\n<li>Two different schemes for three level voltage space vector generation for induction motor drives with reduced DC link Voltage,K.Sivakumar,Anandarup Das,Rjil Ramchand,Chintan Patel,and K.Gopakumar,<strong><span style=\"color: #000080\"> EPE( European power electronics journal),vol.20,no.1,March2010,pp5-12<\/span> <\/strong><\/li>\n<li>A survey on cascaded multilevel inverters ,Mariusz Malinowski,K.Gopakumar,Jose Rodriguez and Marcelo Perez,<strong><span style=\"color: #000080\"> IEEE Trans. On Industrial Electronics-Vol.1, No.1,Dec.2009<\/span> <\/strong><\/li>\n<li>A fivelevel inverter scheme for a four pole induction motor drive by feeding the identical volatge profile windings from both sides ,K.Sivakumar,Anandarup Das, Rjil Ramchand,Chintan Patel,and K.Gopakumar<strong><span style=\"color: #000080\"> IEEE Trans. On Industrial Electronics,Vol.57,no.8,pp.2776-2784,2010.<\/span> <\/strong><\/li>\n<li>Improved Switching Frequency Variation Control of Hysteresis Controlled VSI Fed IM Drives Using Current Error Space Vector ,Rijil Ramchand,K.Sivakumar,Anandarup Das, Chintan Patel,and K.Gopakumar<strong><span style=\"color: #000080\"> IET Power Electronics,Vol.3,No.2,pp.219-231,March 2010<\/span> <\/strong><\/li>\n<li>A Five level inverter scheme for an open end winding induction machine with less number of switches ,Sheron Figarado,K.Sivakumar,Rijil Ramchand,Anandarup Das, Chintan Patel,and K.Gopakumar<strong><span style=\"color: #000080\"> IET Power Electronics,Vol.3,Iss.4,pp637-647-2010<\/span> <\/strong><\/li>\n<li>A Pulse Width Modulated control of Induction Motor drive using multilevel 12-sided polygonal volatge space vectors ,Anandarup Das,K.Sivakumar,P.Chintan, Rijil Ramchand, and K.Gopakumar<strong><span style=\"color: #000080\"> IEEE Trans. On Industrial Electronics,Vol.56,No.7,July 2009<\/span> <\/strong><\/li>\n<li>A DC-link Capacitor Voltage Balancing with CMV Elimination using only the Switching State Redundancies fora Reduced Switch Count Multi-Level Inverter fed IM Drive, Gopal Mondal, Rijil Ramchand,F.sheron,and K.Gopakumar<strong><span style=\"color: #000080\"> EPE( European power electronics journal),Vol.19,N0.1, March-2009<\/span> <\/strong><\/li>\n<li>A dual seven level inverter supply for an open-end winding induction motor drive, Gopal Mondal,K. Gopakumar,Rijil Ramchand,Emil Levi<span style=\"color: #000080\"><strong> IEEE Trans.on IE.Vol.56,no.5,May-2009,pp.1665-1673.<\/strong><\/span><\/li>\n<li>A combination of Hexagonal and 12-sided polygonal voltage space vector PWM control for Im drives using cascaded two level inverters, Anandarup das,K. Sivakumar, Rijil Ramchand,Chintan Patel, and K.Gopakumar <strong><span style=\"color: #000080\"> IEEE Trans. on IE,Vol.56,NO.5,May 2009.<\/span> <\/strong><\/li>\n<li>Neutral point balancing of NPC three-level inverter with a front end switched rectifier DC source for the full modulation range, K. Sivakumar,Sukumar De,K.Gopakumar, Gopal Mondal,Keith Corzine<span style=\"color: #000080\">,<strong>IET Proceedings &#8211; Electric Power Applications,2008 <\/strong><\/span><\/li>\n<li>Three level inverter scheme with reduced power devise count for an induction motor drive with coomn mode voltage elimination, Sheron Figarado, Tanmoy Bhattacharya, Gopal Mondal, and K. Gopakumar, <span style=\"color: #000080\"><strong>IET Power Electronics -2008, vol.1, no.1, pp. 84-92, U.K.<\/strong><\/span><\/li>\n<li>An 18-sided polygonal voltage space vector based PWM control for an induction motor drive, Sanjay Lakshminarayanan, K. Gopakumar,<span style=\"color: #000080\"> <strong>IET Proceedings &#8211; Electric Power Applications, 2008, 2, (1), pp. 56-63, U.K<\/strong><\/span><\/li>\n<li>Twelve-sided polygonal voltage space vector based multi level inverter for an induction motor drive with common mode voltage elimination, Sanjay Lakshminarayanan, Gopal Mondal, P. N. Tekwani,K.K Mohapatra and K. Gopakumar,<span style=\"color: #000080\"> <strong> IEEE trans. ON IE vol.54,no.3, October 2007.pp 2761-2768.<\/strong>.<\/span><\/li>\n<li>A reduced switch count five-level inverter with common-mode voltage elimination for an open-end winding induction motor drive; Gopal Mondal, K. Gopakumar, P.N. Tekwani, E. Levi, &#8211; <span style=\"color: #000080\"><strong>IEEE Trans. on IE vol.54,no.4,August 2007.pp 2344-2351<\/strong>.<\/span><\/li>\n<li>Linearization of the multi-level SVPWM signal generation in the over-modulation region extending up to six-step mode using only the sampled amplitudes of reference phase voltages; R.S Kanchan, P.N Tekwani and K.Gopakumar-<span style=\"color: #000080\"> <strong>EPE JournalVol.17,no.2,June-2007 <\/strong>.<\/span><\/li>\n<li>A five-level inverter topology with common-mode voltage elimination for induction motor drives, P. N. Tekwani, R. S. Kanchan, and K. Gopakumar,<span style=\"color: #000080\"> <strong>European Power Electronics (EPE) Journal vol.17,no.1, March 2007.pp 11-23<\/strong>,<\/span> Brussels, Belgium.<\/li>\n<li>Five-level inverter scheme for an induction motor drive with simultaneous elimination of common-mode voltage and dc-link capacitor voltage unbalance- P.N Tekwani, R.S Kanchan, K.Gopakumar <span style=\"color: #000080\"><strong>IEE proceedings on EPA ,vol152,No.6,November 2005,pp1539-1555<\/strong><\/span><\/li>\n<li>Synchronised carrier based SVPWM signal generation scheme for the entire modulation range extending upto six-step mode using the sampled amplitudes of reference phase voltages; R.S. Kanchan, K. Gopakumar, Ralph Kennel, Accepted &#8211; <span style=\"color: #000080\"><strong>IET &#8211; Electric Power Applications ,2007,I,(3),pp.407-415<\/strong>.<\/span><\/li>\n<li>A dual Five-level Inverter Topology for Induction Motor Drive with DC-link Capacitor Voltage Balancing and Common-mode Voltage Elimination In The Complete Modulation Range, P.N Tekwani, R.S Kanchan,K.Gopakumar, , <span style=\"color: #000080\"><strong>IEEE \ufffdIEEE Trans. on Industrial Electronics Part-I,Vol.54,no.5, OCT 2007.pp.2600-2608.<\/strong><\/span><\/li>\n<li>A dual Five-level Inverter Topology for Induction Motor Drive with DC-link Capacitor Voltage Balancing and Common-Mode Voltage Elimination In The Complete Modulation Range\ufffd Part-II, P. N. Tekwani, R. S. Kanchan, and K. Gopakumar,<span style=\"color: #000080\"> <strong>IEEE Trans. on Industrial Electronics. Vol 54 No.5, OCT. 2007.pp2609-2617<\/strong>,<\/span><\/li>\n<li>Novel Current Error Space Phasor Based Hysteresis Controller Using Parabolic Bands for Control of Switching Frequency Variations; P.N. Tekwani, R.S. Kanchan, K. Gopakumar, <strong><span style=\"color: #000080\">IEEE Trans. on IE, Vol 54 No.5, OCt. 2007.pp2648-2656.<\/span> <\/strong><\/li>\n<li>A novel six phase induction motor drive without harmonic filters and with linear voltage control for the full modulation range &#8211; K.K Mohapatra, K.Gopakumar, <span style=\"color: #000080\"><strong>EPE (European power electronics and drives) Journal,vol.16,no.4, December-2006<\/strong><\/span><\/li>\n<li>Three level inverter scheme with common mode voltage elimination and DC link capacitor voltage balancing for an open-end winding induction motor drive, R.S Kanchan, P.N Tekwani, K.Gopakumar,<span style=\"color: #000080\"> <strong>IEEE Trans. On Power Electronics,vol.21,No.6, November 2006<\/strong><\/span><\/li>\n<li>A sensorless field oriented control if induction motor using ripple currents in space phasor based PWM control- K.K Mohapatra, K.Gopakumar, <span style=\"color: #000080\"><strong>EPE Journal,vol.16,no.3,September-2006<\/strong>.<\/span><\/li>\n<li>A multi-level inverter with 12-sided polygonal voltage space vector locations for an induction motor drive, Sanjay Lakshminarayanan, R. S. Kanchan, P. N. Tekwani, and K. Gopakumar,<span style=\"color: #000080\"> <strong>IEE Proceedings &#8211; Electric Power Applications,vol.153,no.3, May-2006<\/strong>,<\/span> U.K.<\/li>\n<li>Five-Level Inverter Topology for IM Drive With DC-Link Capacitor Voltage Balancing and Common-Mode Voltage Elimination in Entire Modulation Range: A Closed-Loop Control Accepted for the <span style=\"color: #000080\"><strong>Polish Journal Electrical Review &#8211; Przeglad Elektrotechniczny<\/strong><\/span> R .82 NR 2\/2006.pp 73-83.<\/li>\n<li>Independent field oriented control of two split-phase induction motors from a single six-phase inverter, K.K Mohapatra, R.S Kanchan, M.R Baiju, P.N Tekwani, K.Gopakumar,<span style=\"color: #000080\"> <strong>IEEE Transactions on Industrial electronics,Vol.52, no.5,October-2005<\/strong><\/span><\/li>\n<li>Current Error Space Vector Based Hysteresis PWM Controller for Three-level Voltage Inverter fed Drive- accepted &#8212; P.N Tekwani, R.S Kanchan, K.Gopakumar accepted for publication in <span style=\"color: #000080\"><strong>IEE-EPA Journal<\/strong><\/span> &#8211; Vol.152. No.5. Sept.2005<\/li>\n<li>A Multi level inverter system for an induction motor with open-end windings. V.T Somasekhar, M.R Baiju, K.Gopakumar, K.K Mohapatra,<span style=\"color: #000080\"> <strong>IEEE Transactions on Industrial electronics<\/strong>,<\/span> Vol.52, NO.3, June-2005, pp 824-836.<\/li>\n<li>Three level inverter configuration with common mode elimination for an induction motor drive, R.S Kanchan,P.N Tekwani,M.R Baiju,K.Gopakumar, A.Pittet,<span style=\"color: #000080\"> <strong>IEE Proceedings on Electric power applications<\/strong>,<\/span> Vol.152, No 2.April 2005, pp. 261-270<\/li>\n<li>Space vector PWM signal generation for multi-level inverters using only the sampled amplitudes of reference phase voltages, R.S Kanchan, M.R Baiju, K.K Mohapatra, P.P Ouseph, K.Gopakumar,<span style=\"color: #000080\"> <strong>IEE Proceedings on Electric power applications<\/strong>,<\/span> Vol.152, No.2, April 2005, pp.297-309<\/li>\n<li>A space phasor based current hysteresis controller using adjacent inverter voltage vector selection with smooth transition to six-step operation for a three phase voltage source inverter, M.R Baiju, K.K Mohapatra, R.S Kanchan, P.N Tekwani, K.Gopakumar,<span style=\"color: #000080\"> <strong>EPE Journal<\/strong>,<\/span> Vol.15, No.1,2005.<\/li>\n<li>A four level inverter scheme with reduced common mode voltage for an induction motor drive, R.S Kanchan, P.N Tekwani, M.R Baiju, K.Gopakumar,<span style=\"color: #000080\"> <strong>EPE (European power electronics and drives) journal<\/strong>,<\/span> Vol.15, No.3,2005.<\/li>\n<li>Independent speed control of two six-phase induction motors using a single six-phase inverter, K.K Mohapatra, M.R Baiju, K.Gopakumar, <span style=\"color: #000080\"><strong>EPE Journal<\/strong>,<\/span> Vol.13,No.3, August 2004, pp.49-62.<\/li>\n<li>A dual two-level inverter scheme with commonmode voltage elimination for an induction motor drive : M.R.Baiju, K.K Mohapatra, R.S Kanchan, K.Gopakumar,<span style=\"color: #000080\"> <strong>IEEE Trans. On Power Electronics.<\/strong><\/span> Vol.19. No.3, May 2004, pp.794-805.<\/li>\n<li>Dual two-level inverter scheme for an open-end winding IM drive with a single DC power supply and improved DC bus utilisation : V.T Somasekhar, K.Gopakumar, M.R Baiju. <span style=\"color: #000080\"><strong>IEE Proceedings on Electric power applications. UK. March 2004<\/strong><\/span><\/li>\n<li>A harmonic elimination and suppression scheme for an open-end winding induction motor drive, K.K Mohapatra,K.Gopakumar,V.T Somasekhar, L.Umanand <strong><span style=\"color: #000080\">IEEE Transactions on Industrial electronics<\/span>. <\/strong>Vol.50,No.6, Dec.2003, pp.1187-1197<\/li>\n<li>A high resolution multi-level voltage space phasor generation for an open-end winding induction motor drive. M.R Baiju, K.Gopakumar, V.T Somasekhar, K.K Mohapatra, L.Umanand. CD Rom copy No.18. <span style=\"color: #000080\"><strong>EPE Journal<\/strong><\/span>, Vol.13, no.4. November 2003.<\/li>\n<li>A harmonic elimination scheme for an induction motor with open-end windings fed from two inverters with asymmetrical DC link voltages: K.K Mohapatra, K.Gopakumar, V.T Somasekhar, <strong><span style=\"color: #000080\">EPE journal<\/span>.<\/strong> Vol.12., no.4., November-2003.<\/li>\n<li>A five level inverter voltage space phasor generation for an open-end winding induction motor drive. M.R Baiju, K.K Mohapatra, V.T Somasekhar, K.Gopakumar, L.Umanand,<span style=\"color: #000080\"> <strong>IEE Proc.-Electr. Power Applications<\/strong><\/span>, Vol.150, No.5, September 2003, pp531-538<\/li>\n<li>A space vector based PWM method using only instantaneous amplitudes of reference phase voltages for three level inverters. M.R Baiju, K.Gopakumar, V.T Somasekhar,<strong><span style=\"color: #000080\">EPE journal<\/span>.<\/strong> Vol.13.no.2.May-2003. pp 35-45.<\/li>\n<li>Three-level inverter configuration cascading two two-level inverters. V.T Somasekhar, K.Gopakumar, <strong><span style=\"color: #000080\">IEE Proceedings<\/span>.<\/strong> Electr. Power. Appl., Vol.150,No.3, May 2003. pp 245-254.<\/li>\n<li>A multilevel voltage space phasor generation for an open-end winding induction motor drive using a dual\ufffdinverter scheme with asymmetrical DC link voltages: V.T Somasekhar, K.Gopakumar, E.G Shivakumar, A.Pittet,\u00a0<strong><span style=\"color: #000080\">EPE journal<\/span>.<\/strong> Vol.12, no.3, August-2002, pp 7-15<\/li>\n<li>A space vector modulation scheme for a dual two level inverter fed open-end winding induction motor drive for the elimination of zero sequence currents, V.T Somasekhar, K.Gopakumar, E.G Shivakumar, S.KSinha <strong><span style=\"color: #000080\">EPE journal<\/span>..<\/strong> Vol.12.no.2.May 2002, pp.26-36.<\/li>\n<li>PWM inverter switching stratqgy for a dud two-levelinverter fed open-end winding induction motor drive with a switched neutral,V.T Somasekhar, K.Gopakumar,A.Pittet and V.T Ranganathan <strong><span style=\"color: #000080\">IEE Proc. -Electric Power<\/span> <span style=\"color: #000080\">Appln.Vol.149.no.2,March2002,pp.153-160 journal. <\/span><\/strong> Vol.12.no.2.May 2002, pp.26-36.<\/li>\n<li>Space vector PWM control of Dual inverter fed open-end winding induction motor drive. E.G Shivakumar, K.Gopakumar, S.K.Sinha, A.Pittet, V.T Ranganathan, <strong><span style=\"color: #000080\">EPE journal<\/span>.<\/strong> Vol.12. no.1. February 2002, pp.9-18.<\/li>\n<li>A PWM scheme for a 3-level inverter cascading two 2-level inverters, V.T Somasekhar K.Gopakumar, M.R Baiju, K.K Mohapatra, L.Umanand <strong>Journal of the Indian Institute of Science<\/strong>, Bangalore, vol.82,No.1, Jan-Feb.2002, pp 23-36.<\/li>\n<li>A multi Axis space Phasor Based Current Hysteresis Controller for PWM Inverters : V.Mistry, Sailesh waikar, K.Gopakumar, V.T Ranganathan, L.Umanand\u00a0<strong><span style=\"color: #000080\">EPE journal<\/span>.<\/strong> Vol.10. no.1. April-2000, pp.17-25.<\/li>\n<li>A sensorless vector control scheme for induction motors using space phasor based current hysteresis controller. Ebenezer.V, K.Gopakumar, V.T Ranganathan, <strong><span style=\"color: #000080\">EPE journal<\/span>.<\/strong> Vol.9.no.3-4. January 2000, pp.42-46.<\/li>\n<li>Vector Control of Induction Motor with Split Phase Stator Windings. K. Gopakumar, V.T Ranganathan, S.R Bhat.<span style=\"color: #000080\"> <strong>EPE (European Power Electronics and Drives)<\/strong><\/span> journal. Vol.7. no.1-2 August-October-1997, pp.61-66<\/li>\n<li>Split\ufffdphase induction motor operation from PWM voltage source inverter. K.Gopakumar, V.T Ranganathan, S.R Bhat, <span style=\"color: #000080\"><strong>IEEE Trans. Industry Applns.<\/strong><\/span> Vol.29. No. 5. September\/October 1993. pp 927-933<\/li>\n<li>Performance of Improved Dual Current Source Inverter for Induction Motor Drive. K.Gopakumar, <span style=\"color: #000080\"><strong>et. al. IETE<\/strong><\/span>, India, Vol.67, April &#8211; 1987.<\/li>\n<li>Modified Current Source Inverter fed Induction Motor Drive with Reduced Torque Pulsations. K. Gopakumar, et .al. <span style=\"color: #000080\"><strong>IEE Proceedings, vol.131. pt. B. No. 4<\/strong><\/span> July-1984<\/li>\n<\/ol>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section bb_built=&#8221;1&#8243; fullwidth=&#8221;off&#8221; specialty=&#8221;off&#8221; transparent_background=&#8221;off&#8221; allow_player_pause=&#8221;off&#8221; inner_shadow=&#8221;off&#8221; parallax=&#8221;off&#8221; parallax_method=&#8221;off&#8221; make_fullwidth=&#8221;off&#8221; use_custom_width=&#8221;off&#8221; width_unit=&#8221;on&#8221; make_equal=&#8221;off&#8221; use_custom_gutter=&#8221;off&#8221; module_id=&#8221;Conferences&#8221; inner_width=&#8221;auto&#8221; inner_max_width=&#8221;1280px&#8221; prev_background_color=&#8221;#ffffff&#8221; next_background_color=&#8221;#ffffff&#8221;][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; width=&#8221;80%&#8221; max_width=&#8221;1280px&#8221; _builder_version=&#8221;4.9.0&#8243;][et_pb_column type=&#8221;4_4&#8243; custom_padding__hover=&#8221;|||&#8221; 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header_4_text_shadow_vertical_length=&#8221;header_4_text_shadow_style,%91object Object%93&#8243; header_4_text_shadow_vertical_length_tablet=&#8221;0px&#8221; header_4_text_shadow_blur_strength=&#8221;header_4_text_shadow_style,%91object Object%93&#8243; header_4_text_shadow_blur_strength_tablet=&#8221;1px&#8221; header_5_text_shadow_horizontal_length=&#8221;header_5_text_shadow_style,%91object Object%93&#8243; header_5_text_shadow_horizontal_length_tablet=&#8221;0px&#8221; header_5_text_shadow_vertical_length=&#8221;header_5_text_shadow_style,%91object Object%93&#8243; header_5_text_shadow_vertical_length_tablet=&#8221;0px&#8221; header_5_text_shadow_blur_strength=&#8221;header_5_text_shadow_style,%91object Object%93&#8243; header_5_text_shadow_blur_strength_tablet=&#8221;1px&#8221; header_6_text_shadow_horizontal_length=&#8221;header_6_text_shadow_style,%91object Object%93&#8243; header_6_text_shadow_horizontal_length_tablet=&#8221;0px&#8221; header_6_text_shadow_vertical_length=&#8221;header_6_text_shadow_style,%91object Object%93&#8243; header_6_text_shadow_vertical_length_tablet=&#8221;0px&#8221; header_6_text_shadow_blur_strength=&#8221;header_6_text_shadow_style,%91object Object%93&#8243; header_6_text_shadow_blur_strength_tablet=&#8221;1px&#8221; box_shadow_horizontal_tablet=&#8221;0px&#8221; box_shadow_vertical_tablet=&#8221;0px&#8221; box_shadow_blur_tablet=&#8221;40px&#8221; box_shadow_spread_tablet=&#8221;0px&#8221; vertical_offset_tablet=&#8221;0&#8243; horizontal_offset_tablet=&#8221;0&#8243; z_index_tablet=&#8221;0&#8243;]<\/p>\n<h3>Publications in Conferences<\/h3>\n<ol>\n<li><span style=\"color: #000000\">A 5 Level Inverter Using a 3 Level Inverter and a Capacitor Fed 2 Level Inverter Feeding an IM Drive from Both Sides with Extended Linear Modulation Range Till Full Base Speed, Vivek R S, T. Debnath, K. Gopakumar, L. Umanand and D. Zielinski, <\/span><strong><span style=\"color: #000080\">\u00a0IECON 2023- 49th Annual Conference of the IEEE Industrial Electronics Society, Singapore, Singapore, 2023, pp. 1-6, doi: 10.1109\/IECON51785.2023.10311804.<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">A Hybrid Polygonal Space Vector Modulation Scheme for an Induction Motor Drive, P. Surana, M. G. Majumder, K. Gopakumar, L. Umanand and P. N. Tekwani,<\/span>\u00a0<span style=\"color: #000080\"><strong> 2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), Jaipur, India, 2022, pp. 1-6, doi: 10.1109\/PEDES56012.2022.10080435.<\/strong><\/span><\/li>\n<li><span style=\"color: #000000\">DC-link Capacitors Voltage Control using a Multi-phase Induction Motor Load Driven by a Multilevel Inverter, T. Debnath, K. Gopakumar and L. Umanand, <\/span>\u00a0<span style=\"color: #000080\"><strong>IECON 2022 \u2013 48th Annual Conference of the IEEE Industrial Electronics Society, Brussels, Belgium, 2022, pp. 1-6, doi: 10.1109\/IECON49645.2022.9969045.<\/strong><\/span><\/li>\n<li><span style=\"color: #000000\">A Dense Multilevel 24-sided Polygonal Voltage Space Vector Structure for IM Drive with Open-end Winding Configuration, P. Surana, M. Ghosh Majumder, K. Gopakumar, L. Umanand and L. G. Franquelo,<\/span> <strong><span style=\"color: #000080\">IECON 2022 \u2013 48th Annual Conference of the IEEE Industrial Electronics Society, Brussels, Belgium, 2022, pp. 1-6, doi: 10.1109\/IECON49645.2022.9968937.<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">Variable Speed Induction Motor Drive Scheme with Very Dense 18-sided Voltage Space Vector Structure, M. Imthias, R. Rakesh, K. Gopakumar, L. Umanand and R. K. Mahapatra,<\/span> <span style=\"color: #000080\"><strong>2022 IEEE Applied Power Electronics Conference and Exposition (APEC), Houston, TX, USA, 2022, pp. 115-119, doi: 10.1109\/APEC43599.2022.9773391.<\/strong><\/span><\/li>\n<li><span style=\"color: #000000\">A 24-sided Polygonal Voltage Space Vector Structure for IM drive with Open end winding Configuration, P. Surana, R. R, K. Gopakumar and L. Umanand,<\/span> <strong><span style=\"color: #000080\">IECON 2021 \u2013 47th Annual Conference of the IEEE Industrial Electronics Society, Toronto, ON, Canada, 2021, pp. 1-5, doi: 10.1109\/IECON48115.2021.9589640.<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">Suppression of Lower Order Harmonics using a 21-Concentric 42-sided polygonal Space Vector Structure for Induction Motor Drive Applications, R. Dewani, K. Gopakumar, U. Loganathan, L. G. Franquelo and K. Rajashekara,<\/span>\u00a0 <span style=\"color: #000080\"><strong>IECON 2021 \u2013 47th Annual Conference of the IEEE Industrial Electronics Society, Toronto, ON, Canada, 2021, pp. 1-6, doi: 10.1109\/IECON48115.2021.9589191.<\/strong><\/span><\/li>\n<li><span style=\"color: #000000\">Suppression of lower order harmonics by Switched-Capacitive filtering using Polygonal Space Vector Structures and Capacitor Sizing for Induction Motor Drive Applications, R. Dewani, K. Gopakumar, L. Umanand and S. Bhattacharya,<\/span><span style=\"color: #000080\"><strong>\u00a0IECON 2021 \u2013 47th Annual Conference of the IEEE Industrial Electronics Society, Toronto, ON, Canada, 2021, pp. 1-6, doi: 10.1109\/IECON48115.2021.9589848.<\/strong><\/span><\/li>\n<li><span style=\"color: #000000\">A Multilevel 30-sided Space Vector Structure Generation for an Induction Motor Drive Using a Single DC-link, R. Rakesh, M. Ghosh Majumder, K. Gopakumar, L. Umanand, D. Zieliski and L. G. Franquelo,<\/span> <strong><span style=\"color: #000080\">IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society, Singapore, 2020, pp. 2579-2583, doi: 10.1109\/IECON43393.2020.9254943.<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">A Nine Level Inverter Topology with Linear Operation at Over-modulation Region, S. Pal, M. G. Majumder, R. Rakesh, R. K. Mahapatra, K. Gopakumar and L. Umanand,<\/span> <strong><span style=\"color: #000080\">2020 IEEE 29th International Symposium on Industrial Electronics (ISIE), Delft, Netherlands, 2020, pp. 229-234, doi: 10.1109\/ISIE45063.2020.9152214.<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">A Fifteen Concentric 30-sided Polygonal Space Vector Structure Using a Single DC-link for OEIM drive, R. Rakesh, M. G. Majumder, K. Gopakumar, L. Umanand, L. G. Franquelo and W. Jarzyna,<\/span>\u00a0<span style=\"color: #000080\"><strong> 2020 IEEE 29th International Symposium on Industrial Electronics (ISIE), Delft, Netherlands, 2020, pp. 1155-1160, doi: 10.1109\/ISIE45063.2020.9152382.<\/strong><\/span><\/li>\n<li><span style=\"color: #000000\">Generation of 42-sided polygonal Voltage Space Vector Structure for suppression of lower order harmonics in IM Drive Applications, Dewani, Rahul and Majumder, Mriganka Ghosh and R., Rakesh and Gopakumar, K. and Umanand, L. and Zieliski, Dariusz and Jarzyna, Wojciech,<\/span> <strong><span style=\"color: #000080\">2020 IEEE 29th International Symposium on Industrial Electronics (ISIE), Delft, Netherlands, 2020, pp. 313-318, doi: 10.1109\/ISIE45063.2020.9152249.<\/span><\/strong><\/li>\n<li><span style=\"color: #000000\">A Novel approach for the analysis of Harmonic Suppression in higher-sided polygonal SV structures, R. Dewani, K. Gopakumar, R. Rakesh, M. G. Majumdar and L. Umanand,<\/span> <span style=\"color: #000080\"><strong>2020 IEEE International Conference on Power Electronics, Smart Grid and Renewable Energy (PESGRE2020), Cochin, India, 2020, pp. 1-6, doi: 10.1109\/PESGRE45664.2020.9070544.<\/strong><\/span><\/li>\n<li><span style=\"color: #000000\"><span style=\"color: #000000\">A Five-Level Inverter Scheme with Increased Linear Modulation Range, Majumder, Mriganka Ghosh and R, Rakesh and Imthias, Mohammed and Gopakumar, K. and Umanand, Loganathan and Al-Haddad, Kamal and Franquelo, Leopoldo G.<br \/><\/span><\/span>\u00a0<strong><span style=\"color: #000080\">IECON 2019 &#8211; 45th Annual Conference of the IEEE Industrial Electronics Society, Lisbon, Portugal, 2019, pp. 3301-3306, doi: 10.1109\/IECON.2019.8926730.<\/span><\/strong><\/li>\n<li><a href=\"https:\/\/ieeexplore.ieee.org\/document\/8915527\/\"><span style=\"color: #000000\">A 5-Level Inverter Topology Using a Single DC-Link with Reduced Switch Count for Open-End Induction Motor Drives;<\/span>\u00a0 <\/a><span style=\"color: #000000\"><a style=\"color: #000000\">Mriganka Ghosh Majumder\u00a0<\/a>;\u00a0<a style=\"color: #000000\">Apurv K. Yadav\u00a0<\/a>;\u00a0<a style=\"color: #000000\">K.\u00a0<span class=\"highlight\">Gopakumar<\/span>\u00a0<\/a>;\u00a0<a style=\"color: #000000\">Loganathan Umanand\u00a0<\/a>;\u00a0<a style=\"color: #000000\">Krishna Raj R\u00a0<\/a>;\u00a0<\/span><a><span style=\"color: #000000\">Leopoldo G. Franquelo<\/span>; <\/a><strong><span style=\"color: #000080\"><a style=\"color: #000080\" href=\"https:\/\/ieeexplore.ieee.org\/xpl\/conhome\/8895670\/proceeding\">2019 21st European Conference on Power Electronics and Applications (EPE &#8217;19 ECCE Europe)<\/a><\/span><\/strong><\/li>\n<li><span style=\"color: #333333\">A 30-sided polygonal space vector structure with modular low voltage capacitor fed cascaded H bridge for IM drive\u00a0<\/span><span style=\"color: #333333\"><a style=\"color: #333333\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37085913175\">Rakesh R.\u00a0<\/a>;\u00a0<a style=\"color: #333333\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37086038917\">Apurv Kumar Yadav\u00a0<\/a>;\u00a0<a style=\"color: #333333\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37086022937\">Krishna Raj R.\u00a0<\/a>;\u00a0<a style=\"color: #333333\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37267452200\">K.\u00a0<span class=\"highlight\">Gopakumar<\/span>\u00a0<\/a>;\u00a0<a style=\"color: #333333\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37375139000\">L. Umanan<strong>d<\/strong> ;<\/a><\/span><strong><span style=\"color: #000080\"><a style=\"color: #000080\" href=\"https:\/\/ieeexplore.ieee.org\/xpl\/conhome\/8767359\/proceeding\">2019 IEEE 28th International Symposium on Industrial Electronics (ISIE)-Vancouver, Canada<\/a><\/span><\/strong><\/li>\n<li><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8781446\/\">A 30-sided polygonal space vector structure with modular low voltage capacitor fed cascaded H bridge for IM drive<\/a>; <a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37085913175\">Rakesh R\u00a0<\/a>;\u00a0<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37086038917\">Apurv Kumar Yadav\u00a0<\/a>;\u00a0<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37086876243\">Krishna Raj R\u00a0<\/a>;\u00a0<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37267452200\">K.\u00a0Gopakumar\u00a0<\/a>;\u00a0<a style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/author\/37375139000\">L Umanand:<\/a><strong> <span style=\"color: #000080\"><a style=\"color: #000080\" href=\"https:\/\/ieeexplore.ieee.org\/xpl\/conhome\/8767359\/proceeding\">2019 IEEE 28th International Symposium on Industrial Electronics (ISIE)<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"color: #000000\"><a id=\"LPlnk668700\" class=\"x_OWAAutoLink\" style=\"color: #000000\" title=\"Ctrl+Click or tap to follow the link\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8591579\/\" target=\"_blank\" rel=\"noopener noreferrer\">A Hybrid Seven Level Inverter Topology Formed by Cascading T-Type and Active Neutral Point Clamped Inverter for Induction Motor Drives :<\/a><a id=\"LPlnk817448\" class=\"x_OWAAutoLink\" style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Apurv%20Kumar%20Yadav.QT.&amp;newsearch=true\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"x_ng-binding\">\u00a0Apurv Kumar Yadav<\/span><\/a>; K. Gopakumar<span class=\"x_ng-scope\"><a id=\"LPlnk369519\" class=\"x_OWAAutoLink\" style=\"color: #000000\" title=\"Ctrl+Click or tap to follow the link\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Leopoldo%20Garcia%20Franquelo.QT.&amp;newsearch=true\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"x_ng-binding\">; Krishnaraj R; L.Umanand; Subhashish Bhattacharya;\u00a0<\/span><\/a><\/span><a id=\"LPlnk337783\" class=\"x_OWAAutoLink\" style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Sheldon%20S.%20Williamson.QT.&amp;newsearch=true\" target=\"_blank\" rel=\"noopener noreferrer\"><\/a>Wojciech jarzyna. <span style=\"color: #000080\"><strong>IEEE IECON, 2018, Washington , USA.<\/strong><\/span><\/span><\/li>\n<li><span style=\"color: #000000\"><a id=\"LPlnk176900\" class=\"x_OWAAutoLink\" style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8591564\/\" target=\"_blank\" rel=\"noopener noreferrer\">A Thirteen Level Twenty-Four Sided Polygonal Voltage Space Vector Structure for Drives :<span class=\"x_ng-binding\">krishnaraj R<\/span><span class=\"x_ng-binding\">;<\/span>K. Gopakumar<\/a><a id=\"LPlnk369519\" class=\"x_OWAAutoLink\" style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Leopoldo%20Garcia%20Franquelo.QT.&amp;newsearch=true\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"x_ng-binding\">; ; L.Umanand; Mariusz Malinowski;\u00a0<\/span><\/a><a id=\"LPlnk337783\" class=\"x_OWAAutoLink\" style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/search\/searchresult.jsp?searchWithin=%22Authors%22:.QT.Sheldon%20S.%20Williamson.QT.&amp;newsearch=true\" target=\"_blank\" rel=\"noopener noreferrer\"><\/a>Wojciech jarzyna.<span style=\"color: #000080\"><strong> IEEE IECON 2018, Washington, USA<a id=\"LPlnk176900\" class=\"x_OWAAutoLink\" style=\"color: #000080\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8591564\/\" target=\"_blank\" rel=\"noopener noreferrer\"><\/a><a id=\"LPlnk176900\" class=\"x_OWAAutoLink\" style=\"color: #000080\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8591564\/\" target=\"_blank\" rel=\"noopener noreferrer\"><\/a>.<\/strong><\/span><\/span><\/li>\n<li><span style=\"color: #000000\"><a id=\"LPlnk144415\" class=\"x_OWAAutoLink\" style=\"color: #000000\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8433756\/\" target=\"_blank\" rel=\"noopener noreferrer\">Fast Capacitor Balancing Scheme for Low Voltage Cascaded H-bridges in Multilevel Dodecagonal Space Vector Structure : Mohammad Imthias; Krishna Raj R ; Apurv Kumar Yadav; K. Gopakumar; Carlo Cecati . <strong><span style=\"color: #000080\">IEEE ISIE 2018,\u00a0 Melbourne, Australia.\u00a0<\/span><\/strong><\/a><\/span><\/li>\n<li><span style=\"color: #000000\"><a id=\"LPlnk697941\" class=\"x_OWAAutoLink\" style=\"color: #000000\" title=\"Ctrl+Click or tap to follow the link\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8402992\/\" target=\"_blank\" rel=\"noopener noreferrer\">A Stacked 7-Level Common Mode Voltage Eliminated Inverter Scheme with Single DC-link for Open-End Induction Motor Drive: Apurv Kumar Yadav; K. Gopakumar; Krishnaraj R; L. Umanand; Kouki matsuse; Hisao Kubota. <span style=\"color: #000080\"><strong>PCIM Europe, 2018, Nuremberg, Germany.<\/strong><\/span><\/a><\/span><\/li>\n<li><a id=\"LPlnk697941\" class=\"x_OWAAutoLink\" style=\"color: #000000\" title=\"Ctrl+Click or tap to follow the link\" href=\"https:\/\/ieeexplore.ieee.org\/document\/8402992\/\" target=\"_blank\" rel=\"noopener noreferrer\"><\/a>Six concentric multilevel 24 sided voltage space vector structure for IM drives; Krishna Raj R,\u00a0K. Gopakumar, Mathews Boby, Apurv Kumar Yadav,Leopoldo Franquelo, Sheldon Williamson.<span style=\"color: #000080\"><strong> IEEE IECON, 2017, Beijing , China.<\/strong><\/span><\/li>\n<li>\n<div>An Induction Motor Drive Scheme Generating Twenty-Four Sided Voltage Space Vector Structure with Linear Modulation Range Near to Base Speed; Krishna Raj R,\u00a0K. Gopakumar, Mathews Boby,\u00a0Mariusz Malinowski, Marek Jasinski,<span style=\"color: #000080\"><strong> European Power Electronics (ECCE), EPE -2017. Warsaw, Poland.<\/strong><\/span><\/div>\n<\/li>\n<li>Multilevel dodecagonal space vector generation using stacked inverter cells for IM drives,\u00a0 \u00a0Apurv Kumar Yadav;\u00a0 Mathews Boby;\u00a0 Sumit Pramanick;\u00a0 K. Gopakumar;\u00a0 Leopoldo G. Franquelo . <strong><span style=\"color: #000080\">IEEE 26th International Symposium on Industrial Electronics (ISIE), 2017.Edinburgh, UK<\/span><\/strong><\/li>\n<li>Stacked Multilevel Inverter fed Six Phase Induction Motor with Reduced DC Link and Lower Voltage Devices; Viju Nair, Arun rahul,Gopakumar.K , sheldon williamson and Leopoldo Franquelo<span style=\"color: #000080\">*, <\/span><strong><span style=\"color: #000080\"> IEEE-ICIT 2017, Toronto, Canada<\/span>. <\/strong><\/li>\n<li>Elimination of dead time transients ina three-level flying capacitor inverter using a state machine for switching state sequence selection;Abhijit.K,R. Sudharshan kaarthik, Mathews Boby,Gopakumar.K , and L.Umanand*, <strong><span style=\"color: #000080\"> IEEE-PEDES 2016, Trivandrum, India.<\/span> <\/strong><\/li>\n<li>A multilevel nine concentric Octa decagonal space vector structure for induction mtor drives using a single DC source; Mathews Boby,Sumit Pramanick, Arun Rahul.S, Gopakumar.K , and L.Umanand*, <strong><span style=\"color: #000080\"> IEEE-PEDES 2016, Trivandrum, India<\/span>. <\/strong><\/li>\n<li>An improvised algorithm for capacitor voltage balancing of symmetrically cascaded floating capacitor H-bridge inverter;Roshan KumarR, Gopakumar.K*, <strong><span style=\"color: #000080\"> IEEE-IECON 2016, Florence, Italy<\/span>. <\/strong><\/li>\n<li>A novel forty nine level stacked inverter topology using low voltage devices for drives; Viju Nair; Sumit Pramanick; Arun Rahul S; K. Gopakumar and B. Basak and Leopoldo,*, <span style=\"color: #000080\"><strong> IEEE-IECON 2016, Florence, Italy. <\/strong><\/span><\/li>\n<li>A Multilevel Inverter Fed IM Drive with Dodecagonal Voltage Space Vector Structure using a Single DC Source with Linear Modulation Range Near to Base Speed; Mathews Boby; Sumit Pramanick; Arun Rahul S; K. Gopakumar and L. Umanand R,*, <strong><span style=\"color: #000080\"> IEEE-EPE 2016, Carlshruhe, Germany.<\/span> <\/strong><\/li>\n<li>Reduced switch count seventeen level inverter topology for open-end induction motord rives; Abhijit Kshirsagar,sudharshan Kaarthik,Arun Rahul S; K. Gopakumar and L. Umanand R,Sujit Biswas, Carlo cecati*, <span style=\"color: #000080\"><strong> IEEE-IECON 2016,Florence,Italy. <\/strong><\/span><\/li>\n<li>A new nine level stacked inverter topology for a symmetric six phase induction motor drive with low voltage devices and usinga single DC link, Viju Nair R, Arun Rahul S, Sumit Pramanick, K.Gopakumar and Leopoldo G. Franquelo,*, <strong><span style=\"color: #000080\"> IEEE-ISIE 2016, California, USA.<\/span> <\/strong><\/li>\n<li>Timing Calculations for Three Level Dodecagonal Space Vector Structure From Reference Phase Voltages R. Sudharshan Kaarthik, Prof. K. Gopakumar,Carlo Cecati, Istvan Nagy ,*, <strong><span style=\"color: #000080\"> IEEE-IECON 2015, Yokohama, Japan.<\/span> <\/strong><\/li>\n<li>Nine Level Inverter for Open End Induction Motor with Eight Switches per Phase Abhijit Kshirsagar, R. Sudharshan Kaarthik, Prof. K. Gopakumar,Prof. L. Umanand, and Prof. Kaushik Rajashekhara,*, <strong><span style=\"color: #000080\"> IEEE-IECON 2015, Yokohama, Japan.<\/span> <\/strong><\/li>\n<li>A Hybrid seven level Inverter topologywith a single DC supply and reduced switch count,Arun Rahul S, Sudharshan Kaarthik, K Gopakumar, Rajeevan P.P, Jose I Leon and Leopoldo Franquelo,Istvan Nagy,*, <strong><span style=\"color: #000080\"> EPE-ECCE 2015, Geneva, Switzerland.<\/span> <\/strong><\/li>\n<li>A Hybrid Multilevel Inverter scheme for Induction Motor Drives and Grid-Tied Applications using a Single DC-link, Sudharshan Kaarthik, Roshan Kumar, K Gopakumar, Jose I Leon and Leopoldo Franquelo,*, <strong><span style=\"color: #000080\"> ICIT 2015, Seville, Spain.<\/span> <\/strong><\/li>\n<li>A 19 Level Dodecagonal Voltage Space Vector Structure for Medium Voltage IM Drive, Sudharshan kaarthik, Gopakumar K, Carlo Cecati and Istvan nagy,*, <strong><span style=\"color: #000080\"> IECON 2014, Dallas, Texas, USA<\/span> <\/strong><\/li>\n<li>An open-end winding IM drive with multilevel 12-sided polygonal vectors with symmetric triangles, Sudharshan Kaarthik, Gopakumar .K, jaison mathew, T. Undeland,*, <span style=\"color: #000080\"><strong> EPE ECCE 2014, Lappeenranta, Finaland <\/strong><\/span><\/li>\n<li>A 5th and 7th order harmonic suppression scheme using capacitive filtering for 2-level VSI fed IM drive Najath Abdul Azeez , Sumit Pramanick, K. Gopakumar and Carlo Cecati,*, <strong><span style=\"color: #000080\"> International Symposium on Power Electronics, Electrical Drives, Automation and Motion Conference 2014,Naples, Italy<\/span> <\/strong><\/li>\n<li>A Seventeen-level Inverter With a Single DC-link For Motor Drives,Roshan Kumar, Sudharshan Karthik,Rajeevan P.P, K Gopakumar,Jose Leon and Leopoldo Franquelo,*, <strong><span style=\"color: #000080\">IEEE IECON-2013,WIEN, Austria,<\/span> <\/strong><\/li>\n<li>A 5th and 7th order harmonic suppression scheme for open-end winding asymmetrical six-phase IM drive using a capacitor inverter,Najath Abdul Azeez, Jaison Mathew, K Gopakumar, and Carlo Decati,*, <strong><span style=\"color: #000080\">IEEE IECON-2013,WIEN, Austria,<\/span> <\/strong><\/li>\n<li>A multilevel inverter topology for the generation of Dodecagonal space vectors for medium voltage induction motor with a modified SVPWM strategy for reduction of THD , Jaison Mathew, K.Mathew,Najath,Rajeevan.P.P and K Gopakumar,*, <strong><span style=\"color: #000080\">EPE-2013,Lille,France,<\/span> <\/strong><\/li>\n<li>Simple Computation Techniques of Online Boundary to Achieve Constant Switching Frequency in any General n-level VSI fed IM Drive using Hysteresis Current Controller, Anubrata Dey,Najath, K Gopakumar, Marian Kazmierkowski*, <strong><span style=\"color: #000080\">IEEE-ICIT-2013,Cape Town,Sourh Africa<\/span> <\/strong><\/li>\n<li>Multilevel Octadecagonal Space Vector Generation for Induction Motor Drives by Cascading Asymmetric Three Level Inverters,K Mathew, Jaison Mathew, Najath Abdul Azeez, Anubrata Dey, L Umanand, K Gopakumar*, <strong><span style=\"color: #000080\">IEEE-IECON-2012,Montreal,Canada<\/span> <\/strong><\/li>\n<li>A Nearly Constant Switching Frequency Current Hysteresis Controller with Generalized Parabolic Boundaries using 12-sided Polygonal Voltage,Najath,Anubrata Dey,K.Mathew,Jaison Mathew and K.Gopakumar, <strong><span style=\"color: #000080\">IEEE-ICEM-2012,France<\/span> <\/strong><\/li>\n<li>Multilevel Octadecagonal Space Vector Generation for Induction Motor Drives by Cascading Asymmetric Three Level Inverters,K.Mathew, Jaison Mathew,Najath, Anubrata, Gopakumar and L.Umanand <span style=\"color: #000080\"><strong>IEEE-IECON-2012,Raleigh,USA <\/strong><\/span><\/li>\n<li>Direct torque control acheme of IM drive with 12-sided polygonal volatge space vectors,Chintan Patel, Rijil Ramchand,Rajeevan P.P,K.Sivakumar,Anandarup das,.K,Gopakumar.K, and Marian Kazmierkowski, <strong><span style=\"color: #000080\">EPE-2011,Birmingham<\/span> <\/strong><\/li>\n<li>Online Computation of Current Error Boundary of a Hysteresis Controller for a General n-level VSI Fed Drive with Nearly Constant Switching Frequency,Anubrata Dev,Rajeevan P.P, Mathew.K,Gopakumar.K <span style=\"color: #000080\"><strong>National Power electronics Conference-NPEC-2011,Kolkata.<\/strong><\/span><\/li>\n<li>Simple online computation of nearly constant switching frequency hysteresis controller boundary for a 2-level VSI fed drive Anubrata Dev,Rajeevan P.P,Rijil Ramchand, Gopakumar K,Abu-Rub Haitham <span style=\"color: #000080\"><strong>PEIA-2011 ( Power Electronics for Industrial Application and Renewable Energy Conversion) Seminar, Qatar-2011.<\/strong><\/span><\/li>\n<li>Nearly Constant Switching Frequency Hysteresis Current Controller for General n-level Inverter Fed Induction Motor Drive Anubrata Dev,Rajeevan P.P, Chintan Patel,Mathew.K, Gopakumar K, <span style=\"color: #000080\"><strong>IECOn-2012,Melbourne,Australia.<\/strong><\/span><\/li>\n<li>A Hybrid seven-level Inverter for IM Drive, Rajeevan P.P,Gopakumar K, Sivakumar K, Chintan Patel,Rijil, Gopakumar <span style=\"color: #000080\"><strong>IEEE-PEDES-2010,New Delhi.<\/strong><\/span><\/li>\n<li>A Hybrid Nine-level Inverter for IM Drive Rajeevan P.P,Gopakumar K, Sivakumar K, Chintan Patel, Gopakumar K, Abu-Rub Haitham, <strong><span style=\"color: #000080\">ISIE-2011,Gdansk,Poland<\/span>.<\/strong><\/li>\n<li>A Current Error Space Vector Based Hysteresis Controller with Constant Switching Frequency and Simple Online boundary Computation for VSI fed IM Drive , Rijil Ramchand, Chintan Patel, Anandarup Das, Sivakumar K,Gopakumar K, <span style=\"color: #000080\"><strong>IECON-2010,Phoenix,USA.<\/strong><\/span><\/li>\n<li>Dodecagonal space vector diagram using cascaded H-brideg inverters,Anandarup das,K.Mathew,Chintan Patel,Rijil Ramchand,and K.Gopakumar, <strong><span style=\"color: #000080\">ISIE-2010,Bari,Italy<\/span>.<\/strong><\/li>\n<li>A There level voltage space vector generation for open-end winding induction motor using single volatge source driven dual two-level inverter, K. Sivakumar,Anandarup Das,Rijil Ramchand, Chintan Patel, K.Gopakumar, <span style=\"color: #000080\"><strong>TENCON -2009, conf.Singapore.<\/strong><\/span><\/li>\n<li>A simple five level inverter topology for induction motor drive using conventional two level inverters and flying capacitor technique,K. Sivakumar, Anandarup Das,Rijil Ramchand, Chintan Patel, K.Gopakumar, <span style=\"color: #000080\"><strong>IECON -2009, conf.Porto, Portugal.<\/strong><\/span><\/li>\n<li>Multilevel dodecagonal space vector generation for open end winding induction motor drive using conventional three level inverters,Anandarup Das, K. Sivakumar,Rijil Ramchand, Chintan Patel, K.Gopakumar, <span style=\"color: #000080\"><strong>EPE -2009, conf.Barcelona, Spain.<\/strong><\/span><\/li>\n<li>A High Resolution pulse wisdth modulation technique using concentric multilevel Dodecagonal voltage space vector structures,Anandarup Das, K. Sivakumar,Rijil Ramchand, Chintan Patel, K.Gopakumar, <span style=\"color: #000080\"><strong>IEEE,ISIE-2009, conf. in Seoul, South Korea.<\/strong><\/span><\/li>\n<li>A Hysteresis PWM Controller with constant switching frequency for two level VSI fed drives with operation extending to the six -step mode,Rijil Ramchand, Anandarup Das, K.Sivakumar,Chintan Patel, K.Gopakumar, <span style=\"color: #000080\"><strong>PCIM-Europe-2009, conf in Nurenberg, Germany ,May.-11 to May.-13.<\/strong><\/span><\/li>\n<li>A Front end switched rectifier DC source for neutral point balancing of a NPC three -level inverter for the full modulation range,K. Sivakumar,Sukumar De, K.Gopakumar, Gopal Mondal, Keith Corzine,<span style=\"color: #000080\"> <strong>IEEE,ISIE-2008, conf in Cambridge ,June-30 to July-2.<\/strong><\/span><\/li>\n<li>A multilevel inverter with hexagonal and 12-sided polygonal space vector structure for induction motor drive, Anandarup Das,K. Sivakumar,Gopal Mondal, K.Gopakumar, <span style=\"color: #000080\"><strong>Accepted IEEE,IECON-2008, conf in Orlando,USA .<\/strong><\/span><\/li>\n<li>An improved sapce phasor based current hysteresis controller with reduced switching frequency variations using variable parabolic bands,Rijil Ramchand, K.Gopakumar,P.N Tekwani, and M.R Baiju,<span style=\"color: #000080\"><strong> National Power electronics conference,2007, INDIA.<\/strong><\/span><\/li>\n<li>DC link capacitor balancing of NPC inverter using switched voltage source for the full modulation range ,K.Sivakumar,K.Gopakumar and V.T Somasekhar <strong><span style=\"color: #000080\">National Power electronics conference,2007, INDIA.<\/span> <\/strong><\/li>\n<li>Three-level inverter fed open-end winding IM drive with common mode volatge elimination and reduced power devise count,Sheron Figarado, K.Gopakumar, Gopal Mondal, K.Sivakumar, N.S Dinesh The 33rd annual conference of the<span style=\"color: #000080\"> <strong>IEEE Industrial electronics society( IECON), Nov.5-8, 2007,Taipei, Taiwan,pp1238-1243.<\/strong><\/span><\/li>\n<li>Multilevel inverter with 18-sided polygonal voltage space vector for an open-end winding induction motor drive &#8211; Sanjay Lakshminarayanan,Gopal Mondal and K.Gopakumar <span style=\"color: #000080\"><strong>IEEE, EUROCON-2007,conference,Warsaw,Poland <\/strong><\/span><\/li>\n<li>A Multilevel inverter structure with cascaded two level and three level inverters for IM drive with CMV elimination and DC link capacitor voltage balancing &#8211; Gopal Mondal,K.Gopakumar,P.N Tekwani,and Emil Levi <strong><span style=\"color: #000080\">IEEE, IAS-2007 conference,New Orleans,USA<\/span> <\/strong><\/li>\n<li>A five level inverter scheme with common mode volatge elimination by cascading conventional two level and three level NPC inverters for an induction motor drive &#8211; Gopal Mondal, K.Gopakumar,P.N. Tekwani and E.Levi <span style=\"color: #000080\"><strong>EPE-2007 conference<\/strong><\/span>,Aalborg.<\/li>\n<li>Elimination of common monde voltage and fifth and seventh harmonics in a multilevel inverter fed IM drive using 12-sided polygonal voltage space phasor &#8211; Sanjay Lakshminarayanan, Gopal Mondal P.N. Tekwani and K.Gopakumar <span style=\"color: #000080\"><strong>IEEE- PEDES, 2006 conference<\/strong><\/span>, Delhi.<\/li>\n<li>Generation of Parabolic Trajectories for Current Error Space Phasor similar to an SVPWM Controller for Control of Switching Frequency Variation in Current Hysteresis PWM Controlled IM Drives- P.N Tekwani R.S Kanchan, and K.Gopakumar<span style=\"color: #000080\"> <strong>IEEE, ICIT-2006 conference<\/strong><\/span>, MUMBAI<\/li>\n<li>Switching frequency variation control in hysteresis PWM controller for IM drives using variable parabolic bands for current error space phasor, P.N Tekwani, R.S Kanchan, Sanjay Lakshminarayanan, Gopakumar &#8211; <span style=\"color: #000080\"><strong>IEEE-ISIE conference<\/strong><\/span>, Montreal, 2006.<\/li>\n<li>Linearization of the multi-level SVPWM in the over-modulation region- <span style=\"color: #000080\"><strong>National Power electronics conference<\/strong><\/span>, Dec-22 to 24, 2005, INDIA<\/li>\n<li>A Multilevel Inverter Scheme With Inherent Common-mode Voltage Elimination and DC-link Capacitor Voltage Balancing for Open-end Winding Induction Motor Drive &#8211;<span style=\"color: #000080\"> <strong>National Power electronics conference<\/strong><\/span>, Dec-22 to 24, 2005, INDIA.<\/li>\n<li>Five level inverter topology for induction motor drive with DC link capacitor voltage balancing and common mode voltage elimination in the complete modulation range. P.N Tekwani, R.S Kanchan, K.Gopakumar, accepted of presenting in <span style=\"color: #000080\"><strong>IEEE-PELINCEC-2005<\/strong><\/span> (Power electronics and intelligent control for energy conservation-Warsaw- Poland)<\/li>\n<li>A space vector based PWM switching scheme for the reduction of common mode voltages for a dual inverter fed open-end winding induction motor drive, S.Srinivas, V.T Somasekhar, K.Gopakumar,<span style=\"color: #000080\"> <strong>IEEE, PESC-2005 conference, Brazil<\/strong><\/span>.<\/li>\n<li>A self adaptive space phasor based hysteresis current controller with switching of adjacent inverter voltage vectors for three level voltage source inverter fed induction motor drives, P.N Tekwani, R.S Kanchan, K.Gopakumar, accepted for presenting in the <span style=\"color: #000080\"><strong>IEEE, IEMDC conference, USA, San Antonio-2005<\/strong><\/span><\/li>\n<li>Three level inverter scheme with common mode voltage elimination and DC link capacitor voltage balancing for an open-end winding induction motor drive, R.S Kanchan, P.N Tekwani, K.Gopakumar, accepted for presenting in the<span style=\"color: #000080\"> <strong>IEEE IEMDC conference, USA, San Antonio-2005<\/strong><\/span><\/li>\n<li>A five level inverter topology with common mode voltage elimination for induction motor drives, P.N Tekwani, R.S Kanchan, K.Gopakumar, <span style=\"color: #000080\"><strong>EPE conference, Sept.11-14 Dresden-2005<\/strong><\/span><\/li>\n<li>A seven level voltage space phasor generation scheme for an open-end winding induction motor drive with asymmetric DC link voltages, R.S Kanchan, P.N Tekwani, M.R Baiju, K.Gopakumar, <span style=\"color: #000080\"><strong>IPEC, 2005, Niggata, Japan<\/strong><\/span><\/li>\n<li>A sensorless speed control using stator ripple currents for an induction motor drive with space phasor PWM. K.K Mohapatra, M.R baiju, K.Gopakumar, Balram Murty, <span style=\"color: #000080\"><strong>IEE PEMD-2004 conference Edinburgh., UK.<\/strong><\/span> pp 81-86<\/li>\n<li>A New five level inverter system for an induction motor with open-end windings. V.T Somasekhar, K.Chandrasekhar, K.Gopakumar.<span style=\"color: #000080\"> <strong>IEEE . PEDS-2003, Singapore<\/strong>.<\/span><\/li>\n<li>Space vector PWM technique using only the instantaneous reference phase voltages for a three level inverter cascading two 2-level inverters. M.R Baiju, K.K Mohapatra, R.S Kanchan, K.Gopakumar. <span style=\"color: #000080\"><strong>NPEC-2003, IIT Mumbai<\/strong><\/span><\/li>\n<li>A five level inverter voltage space vector generation for an open-end winding induction motor drive. M.R Baiju, K.K Mohapatra, K.K Mohapatra, L.Umanand,K.Gopakumar.<span style=\"color: #000080\"> <strong>IEEE,APEC-2003,USA<\/strong><\/span><\/li>\n<li>Space vector based PWM method for dual inverter fed open-end winding induction motor drive using only the instantaneous amplitudes of reference phase voltages. M.R Baiju, K.K Mohapatara, K.Gopakumar <span style=\"color: #000080\"><strong>IEEE PEDS- 2003 conference, Singapore<\/strong>.<\/span><\/li>\n<li>A novel modulation scheme for a six phase induction motor with open-end windings, K.K Mohapatra, K. Gopakumar, V.T Somasekhar,<span style=\"color: #000080\"> <strong>IEEE IECON-02<\/strong><\/span> conference in Spain-2002, Nov 4th to Nov 8th.<\/li>\n<li>A multilevel inverter system for an induction motor drive with open-end winding;V.T Somasekhar, M.R baiju, K.K Mohapatra,K.Gopakumar, <span style=\"color: #000080\"><strong>IEEE-pEDS Conf. Singapore-2002 conference<\/strong><\/span>.<\/li>\n<li>Multi axis space phasor based multi level current hysteresis controller for an open-end winding induction motor fed from dual inverters; M.R baiju,K.Gopakumar, L.Umanand, Andre Pittet,<span style=\"color: #000080\"> <strong>PCIM-2002 conference<\/strong><\/span>, Nurnberg, Germany, pp. 405-411.<\/li>\n<li>A multi level space phasor based PWM strategy for an open end winding induction motor drive using two inverters with different DC link voltages.V.T Somasekhar, K. Gopakumar Andre Pittet, V.T Ranganathan,<span style=\"color: #000080\"> <strong>IEEE, PEDS<\/strong> <\/span>conference, Indonesia-2001, pp.169-175.<\/li>\n<li>A novel PWM inverter switching strategy for a dual two-level inverter fed open-end winding nduction motor driv: E.G Shivakumar, K.Gopakumar,S.K Sinha, Andrei Pittet, V.T Ranganathan <span style=\"color: #000080\"><strong>IEEE APEC<\/strong><\/span> conference, USA 2001, pp.169-174<\/li>\n<li>Space vector PWM control of dual inverter fed open-end winding Induction motor drive: E.G Shivakumar, V.T Somasekhar, K.K Mohapatra, K.Gopakumar <span style=\"color: #000080\"><strong>IEEE PEDS<\/strong><\/span> conference, Indonesia 2001, pp.169-174<\/li>\n<li>Modelling and simulation of sensorless vector control of hybrid step motor-.Muthukumar, S.K. Sinha, K.Gopakumar, L.Umanand. Proceedings, Twenty-Ninth Annual Symposium, <span style=\"color: #000080\"><strong>Incremental Motion Control Systems &amp; Devices<\/strong><\/span>. Berkley, USA 2000, pp.171-179<\/li>\n<li>Asymmetric multilevel converter for high resolution voltage phasor generation: A Rufer, M.Veenstra, EPFL, Switzerland and K.Gopakumar CEDT, India, <span style=\"color: #000080\"><strong>EPE conf.<\/strong><\/span> Lausanne, switzerland-2000.<\/li>\n<li>A study on the parallel operation of a front end converter for a high speed electric traction drive: Hong-je Ryoo et.al KERI, changwon, Korea and K.Gopakumar, CEDT, India, <span style=\"color: #000080\"><strong>KIEE<\/strong><\/span> Annual autumn Conference-98,Korea.pp.121-124<\/li>\n<li>Configurations of high power VSI drives for traction applications using multi level inverters and multi phase induction motors: K.Gopakumar, CEDT, India, Geun-Hie Rim, KERI, Changwon, Korea. <span style=\"color: #000080\"><strong>KIEE<\/strong><\/span> (Korean Institution of Electrical and Electronic Engineers), Fall conference-Nov-97 pp.500-504<\/li>\n<li>A Multi axis space phasor based crrent hysteresis controller for Induction motor drive.Vinay M Mistry,S.P Waikar K.Gopakumar, L.Umanand V.T Ranganathan, <strong><span style=\"color: #000080\">IEEE PEDS Conference,Singapore- 1997<\/span>.<\/strong> .<\/li>\n<li>Vector control of induction motor with split phase stator winding. K.Gopakumar, V.T Ranganathan, S.R Bhat, <span style=\"color: #000080\"><strong>IEEE IAS Conference- 1994.<\/strong> .<\/span><\/li>\n<li>An efficient PWM technique for split phase induction motor operation using dual voltage source inverters. K.Gopakumar, V.T Ranganathan, S.R Bhat, <strong><span style=\"color: #000080\">IEEE IAS Conference- 1993<\/span>.<\/strong> pp582-587.<\/li>\n<li>Three Phase Voltage Source Inverter for a high Speed PCB Drilling Machine. K. Gopakumar. et.al,<span style=\"color: #000080\"> <strong>PCIM &#8211; 90 on intelligent Motion. Munich. June 90<\/strong><\/span><\/li>\n<li>Comparative Study of the Dynamic Performance of Two Control schemes for VSI fed induction motor Drive. K. Gopakumar, et.al. <strong><span style=\"color: #000080\">IEEE. conf<\/span>.<\/strong> Computers, Systems and signal Processing, December 1984<\/li>\n<li>Torque Analysis of a Six-Phase Induction Motor fed From a Current Source Inverter. Gopakumar, <span style=\"color: #000080\"><strong>et.al. IEEE conf. Computers, Systems<\/strong><\/span> and Signal Processing, December 1984<\/li>\n<\/ol>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section bb_built=&#8221;1&#8243; fullwidth=&#8221;off&#8221; specialty=&#8221;off&#8221; transparent_background=&#8221;off&#8221; allow_player_pause=&#8221;off&#8221; inner_shadow=&#8221;off&#8221; parallax=&#8221;off&#8221; parallax_method=&#8221;off&#8221; make_fullwidth=&#8221;off&#8221; use_custom_width=&#8221;off&#8221; width_unit=&#8221;on&#8221; make_equal=&#8221;off&#8221; use_custom_gutter=&#8221;off&#8221; module_id=&#8221;Students&#8221; inner_width=&#8221;auto&#8221; inner_max_width=&#8221;1280px&#8221; prev_background_color=&#8221;#ffffff&#8221; next_background_color=&#8221;#ffffff&#8221;][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; width=&#8221;80%&#8221; max_width=&#8221;1280px&#8221;][et_pb_column type=&#8221;4_4&#8243; custom_padding__hover=&#8221;|||&#8221; 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header_4_text_shadow_blur_strength=&#8221;header_4_text_shadow_style,%91object Object%93&#8243; header_4_text_shadow_blur_strength_tablet=&#8221;1px&#8221; header_5_text_shadow_horizontal_length=&#8221;header_5_text_shadow_style,%91object Object%93&#8243; header_5_text_shadow_horizontal_length_tablet=&#8221;0px&#8221; header_5_text_shadow_vertical_length=&#8221;header_5_text_shadow_style,%91object Object%93&#8243; header_5_text_shadow_vertical_length_tablet=&#8221;0px&#8221; header_5_text_shadow_blur_strength=&#8221;header_5_text_shadow_style,%91object Object%93&#8243; header_5_text_shadow_blur_strength_tablet=&#8221;1px&#8221; header_6_text_shadow_horizontal_length=&#8221;header_6_text_shadow_style,%91object Object%93&#8243; header_6_text_shadow_horizontal_length_tablet=&#8221;0px&#8221; header_6_text_shadow_vertical_length=&#8221;header_6_text_shadow_style,%91object Object%93&#8243; header_6_text_shadow_vertical_length_tablet=&#8221;0px&#8221; header_6_text_shadow_blur_strength=&#8221;header_6_text_shadow_style,%91object Object%93&#8243; header_6_text_shadow_blur_strength_tablet=&#8221;1px&#8221; box_shadow_horizontal_tablet=&#8221;0px&#8221; box_shadow_vertical_tablet=&#8221;0px&#8221; box_shadow_blur_tablet=&#8221;40px&#8221; box_shadow_spread_tablet=&#8221;0px&#8221; vertical_offset_tablet=&#8221;0&#8243; horizontal_offset_tablet=&#8221;0&#8243; z_index_tablet=&#8221;0&#8243;]<\/p>\n<h3>Ph.D. Students Completed :<\/h3>\n<ol>\n<li>E.G. Shivakumar : Ph.D. &#8211; Jan-2002, Thesis title: Study on space vector PWM control of dual inverter fed induction motor with open-end winding.- <span style=\"color: #000080\">Professor- UVCE\u00a0 Dept. of EE,Bangalore<\/span><\/li>\n<li>V.T. Somasekhar : Ph.D. &#8211; August-2002, Thesis title: Investigations on multi level inverter schemes for induction motor with open-end windings.-<span style=\"color: #000080\">Professor-Dept of EE, NIT Warangal<\/span>.<\/li>\n<li>Krushna Keshaba Mohapatra : Ph.D. &#8211; Sept.-2003, Thesis title: study on harmonic elimination and suppression techniques for variable speed operation of three phase and split phase open-end winding induction motor.-<span style=\"color: #000080\"> Professor ,Dept of EE,Shiksha O anusnadhan university, Bhubaneswar.<\/span><\/li>\n<li>M.R Baiju : Ph.D. &#8211; May-2004, Thesis title: Investigations on multilevel inverter topologies and modulation schemes for induction motor drives.<span style=\"color: #000080\">Professor- formerly with Dept of ECE, College of engineering , Trivandrum- Currently PSC member, Govt. of Kerala<\/span>.<\/li>\n<li>R.S Kanchan : Ph.D.- August-2005, Thesis title: Investigations on PWM signal generation and common mode voltage elimination schemes for multi level inverter fed induction motor drives.- <span style=\"color: #000080\">Senior Engineer, ABB Sweden<\/span>.<\/li>\n<li>P.N. Tekwani : Ph.D.- July-2006, Thesis title: Investigations on space phasor based hysteresis current controllers and common-mode voltage elimination scheme with dc-link capacitor voltage balancing for multi-level inverter fed induction motor drives-.<span style=\"color: #000080\">Professor, Dept. of EE, Nirma Institute of Technology, Ahmedabad<\/span>.<\/li>\n<li>L.Sanjay:PhD,-June-2007,Thesis title: Generation of 12-sided and 18-sided polygonal volatge space vector fed induction motor drives by cascading conventional two-level inverters- <span style=\"color: #000080\">Professor Ramiah Institute of Technology. Dept. of EE, Bangalore<\/span><\/li>\n<li>Gopal Mondal:PhD,-July-2008,Thesis title:Reduced switch count multi-level inverter structure with common mode voltage elimination and DC-link capaciotr balancing for IM drives- <span style=\"color: #000080\">Senior Engineer, Siemens R&amp;D, Erlangen, Germany.<\/span><\/li>\n<li>Sheron Figarado:PhD,-May-2009,Thesis title:Multilevel inverter topologies with reduced power circuit complexity for medium voltage high power induction motor drives by cascading conventional two-level and three-level inverters- <span style=\"color: #000080\">Asst. Professor-\u00a0 Dept of EE,NIT- Suratkal.<\/span><\/li>\n<li>Anandarup Das:PhD,-Feb.2010,Thesis title:Investigations on Dodecagonal space vector generation for induction motor drives. &#8211;<span style=\"color: #000080\">Associate. Professor, Dept. of EE, IIT Delhi.<\/span><\/li>\n<li>Sivakumar.K:PhD,-April-2010,Thesis title:Multilevel voltage space vector generation for induction motor drives using conventional two-level inverters and H-bridge cells.- <span style=\"color: #000080\">Associate Professor- Dept of EE, IIT Hyderabad<\/span>.<\/li>\n<li>Rijil Ramchand:PhD,-July.-2010,Thesis title:Investigations on Boundary selection for switching frequency variation control of current error space phasor based hysteresis controllers for inverter fed IM drives.-<span style=\"color: #000080\">\u00a0Professor, Dept of EE, NIT Calicut<\/span>.<\/li>\n<li>Sukumar De:PhD,-Jan.-2011.Rectifier and Inverter system for driving axial flux BLDC motors in more electric aircraft applications. &#8211; <span style=\"color: #000080\">Director , Power Electronics Div. ,Alsthom, Bangalore.<\/span><\/li>\n<li>Patel Chintanbhai Ramubhai:PhD,-March.-2011.Investigations on Sensorless Vector Control using Current Error Space Phasor and Direct Torque Control of Induction Motor Drive Based on Hexagonal and 12-Sided Polygonal Voltage Space Vectors.-<span style=\"color: #000080\"> Senior Engineer, Electric drive- Cambridge, UK.<\/span><\/li>\n<li>Rajeevan P.P:PhD,-May.-2012.Investigations on hybrid multilevel power converter topologies and control schemes for AC drives.- <span style=\"color: #000080\">Associate Professor,\u00a0 Dept. of Avionics,Indian Space Research Institute (IIST), Trivandrum.<\/span><\/li>\n<li>Anubrata Dey:PhD,-Dec.-2012.Investigations on online boundary variation techniques for nearly constant switching frequency hysteresis PWM controller for multilevel inverter fed IM drives.-<span style=\"color: #000080\">Asst. Professor, Dept. of EE, IIT Roorkee.<\/span><\/li>\n<li>K.Mathew:PhD,-Aug..-2013.Induction Motor Drives Based on Multilevel Dodecagonal and Octadecagonal Voltage Space Vectors-\u00a0<span style=\"color: #000080\">Professor, Dept. of ECE, Mar Athanasius college of engineering, Kerala.\u00a0<\/span><\/li>\n<li>Najath Abdul Azeez:PhD,-Jan.-2014.Studies on Current Hysteresis Controllers And Low Harmonic Suppression Techniques for IM Drives with Dodecagonal Voltage Space Vectors- <span style=\"color: #000080\">Dept of EE, Onatrio Institute of technology, Oshawa, Canada.<\/span><\/li>\n<li>Jaison mathew:PhD,-Jan.-2014.Investigation on Dodecagonal Multilevel Voltage Space Vector Structures by Cascading Flying Capacitor and Floating H-bridge Cells for Medium Voltage IM Drives-<span style=\"color: #000080\">Associate Professor, Dept of EE, Govt. Engineering College, Trichur, Kerala.<\/span><\/li>\n<li>Roshan Kumar pappu:PhD,-Aug.-2014.Studies on Single DC link Fed MultilevelInverter Topologies Using Flying Capacitor And Floating Capacitor Fed H-Bridges-<span style=\"color: #000080\"> Principal Engineer, MicroFuzzy. Munich, Germany.<\/span><\/li>\n<li>Sudharshan kaarthik:PhD,Aug.-2015. Multilevel Dodecagonal Space Vector Structures and Modulation Schemes with Hybrid Topologies for Variable Speed AC drives-<span style=\"color: #000080\">Asst Professor,\u00a0 Dept. of Avionics,Indian Space Research Institute (IIST), Trivandrum.<\/span><\/li>\n<li>Arun rahul:PhD,Dec.-2016. Invetigations on hybrid multilevel inverters witha single DC supply for zero and reduced common mode voltage operation and extended linear modulation range operation for induction motor drives<span style=\"color: #000080\">-Asst. Professor, Dept. of EE, IIT Palghat, Kerala.<\/span><\/li>\n<li>Sumit kumar Pramanick:PhD,Jan.-2017. Switched capacitive filtering scheme for harmonic suppression in variable speed Ac drives-<span style=\"color: #000080\">Asst. Professor, Dept. of EE, IIT Delhi<\/span><\/li>\n<li>Mathews Boby:PhD Aug.2017. Multilevel dodecagonal and octadecagonal voltage space vector structures with a single DC supply using basic inverter cells.<span style=\"color: #000080\"> Dept of EE, University of Concordia, Montreal , Canada.<\/span><\/li>\n<li>Viju Nair.R: PhD, Jan- 2018. Investigations on Stacked multilevel inverter topologies using flying capacitor and H bridge cells for induction motor drives.-<span style=\"color: #000080\">Dept of EE,\u00a0 IIT Tirupathy<\/span>.<\/li>\n<li>Apurv Kumar Yadav; PhD,\u00a0 Nov-2018.\u00a0Investigations on Multilevel Voltage Space Vectors Generated by Stacked and Cascaded Basic Inverter Cells with Capacitor Voltage Control for Induction Motor Drives.- <span style=\"color: #000080\">Dept. of EE, IIT Roorkee.<\/span><\/li>\n<li>Krishna Raj R.: PhD, Jan-2019. Studies on Multilevel Twenty Four Sided Polygonal Voltage Space Vector Structures Generation With a Single DC Link for Variable Speed Drive Applications.-<span style=\"color: #000080\"> Asst. Professor ,Centre for automotive research and tribology<\/span>,<span style=\"color: #000080\">IIT Delhi<\/span><\/li>\n<li>Rakesh.R; PhD,Jan 2021: Investigations on generation of 30 sided polygonal voltage space vector structure using a single DC link for induction motor drives.-<span style=\"color: #000080\">Dept of Electrical\u00a0 and Computer Eng. Uni. of Maryland, USA<\/span><\/li>\n<li>Mriganka Ghosh Majumder: PhD March 2021;Investigations on Five Level Inverter Schemes for Extending the Linear Modulation Range for Induction Motor Drives: <span style=\"color: #000080\">Senior Engineer, Seimens R&amp;D, Erlangen, Germany<\/span><\/li>\n<li>Rahul Dewani, PhD-Feb.2022 : Investigations on Polygonal Voltage Space Vector Structure generation with lower order harmonic suppression using switched capacitive filter throughout modulation range for Drive Applications: <span style=\"color: #000080\">Senior Engineer, TDK Micronas Munich Germany<\/span><\/li>\n<li>Souradeep Pal,\u00a0 PhD-June 2022: Investigation on Increasing the Linear Modulation Range in Hybrid Multilevel Inverter Fed Induction Machine Drives regardless of Load Power Factor: <span style=\"color: #000080\">Senior Engineer, Schnieder Electric, Bangalore, India<\/span><\/li>\n<li>Mohammed Imthias, PhD- July 2022: Investigations on Capacitor Size Reduction and PWM Strategy for Multilevel Polygonal Space Vector Structure for Induction Motor Drives: <span style=\"color: #000080\">Dept. of EE,University of Southern Denmark Sonderborg<\/span><\/li>\n<li>Prashant Surana, PhD-Dec 2022: Investigations on Generation of Multilevel 24-Sided Polygonal Voltage Space Vector Structures Without Vector Averaging for Variable Speed Drives: <span style=\"color: #000080\">Senior Engineer, MicroFuzzy. Munich, Germany.<\/span><\/li>\n<li>Tutan Debnath, PhD-Jan 2023: Investigations on Voltage Control of Stacked DC-link Series Capacitors with a Nine-Level Inverter for an Induction Machine Load: <span style=\"color: #000080\">Dept. of EE, University of Houston, Texas, USA<\/span>.<\/li>\n<li>Vivek R S, PhD (Thesis Submitted)- 2024: Investigations on Extending the Linear Modulation Range of Multilevel Inverter Fed Induction Motor Drives: <span style=\"color: #000080\">Dept. of Electrical Engineering, College of Engineering Trivandrum, Kerala, India<\/span><\/li>\n<\/ol>\n<h3>Present PhD Students :<\/h3>\n<ol>\n<li>Rohith.P<\/li>\n<li>Anchal Takkur<\/li>\n<li>Syam Sunder<\/li>\n<li>Vaidika<\/li>\n<\/ol>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section bb_built=&#8221;1&#8243; fullwidth=&#8221;off&#8221; specialty=&#8221;off&#8221; transparent_background=&#8221;off&#8221; allow_player_pause=&#8221;off&#8221; inner_shadow=&#8221;off&#8221; parallax=&#8221;off&#8221; parallax_method=&#8221;off&#8221; make_fullwidth=&#8221;off&#8221; use_custom_width=&#8221;off&#8221; width_unit=&#8221;on&#8221; make_equal=&#8221;off&#8221; use_custom_gutter=&#8221;off&#8221; module_id=&#8221;Research&#8221; inner_width=&#8221;auto&#8221; inner_max_width=&#8221;1280px&#8221; prev_background_color=&#8221;#ffffff&#8221; next_background_color=&#8221;#000000&#8243;][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; width=&#8221;80%&#8221; max_width=&#8221;1280px&#8221;][et_pb_column type=&#8221;4_4&#8243; custom_padding__hover=&#8221;|||&#8221; custom_padding=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Power Electronics Lab &#8211; A Research Overview&#8221; background_layout=&#8221;light&#8221; text_orientation=&#8221;left&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;]<\/p>\n<h2>Power Electronics Lab &#8211; A Research Overview :<\/h2>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/cedt_part1.ppt\">Part 1 (PPT File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/cedt_part2.ppt\">Part 2 (PPT File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/cedt_part3.ppt\">Part 3 (PPT File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/cedt_part4.ppt\">Part 4 (PPT File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/cedt_part5.ppt\">Part 5 (PPT File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/cedt_part6.ppt\">Part 6 (PPT File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/cedt_part7.ppt\">Part 7 (PPT File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/cedt_part8.ppt\">Part 8 (PPT File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/cedt_part9.ppt\">Part 9 (PPT File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/cedt_part10.pptx\">Part 10 (PPTX File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/DESE_11.pptx\">Part 11 (PPTX File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/DefenseSlidesWithVideo.pdf\">Part 12 (Pdf File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/jan_13_2014.pptx\">Part 13 (PPT File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/DESE_14_2014.ppt\">Part 14 (PPT File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/DESE_15_2014.ppt\">Part 15 (PPT File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/sudharshan-colloquium.pdf\">Part 16 (Pdf File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/04\/abhijitdefense-and-mathews.pdf\">Part 17 (Pdf File)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/09\/Colloquium_13042017.pdf\">part 18 (ppt Files)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2019\/03\/apurv_colloquium.pptx\">part 19 (ppt Files)<\/a><\/p>\n<p><a href=\"http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2019\/03\/krishnaraj_colloquium.pptx\">part 20 (ppt Files)<\/a><\/p>\n<p><a href=\"http:\/\/faculty.dese.iisc.ac.in\/kgopakumar\/wp-content\/uploads\/sites\/7\/2021\/03\/Rakesh_colloquium.pptx\">Part 21(ppt Files)\u00a0<\/a><\/p>\n<p><a href=\"http:\/\/faculty.dese.iisc.ac.in\/kgopakumar\/wp-content\/uploads\/sites\/7\/2021\/03\/Mriganka_Colloquium.pptx\">Part 22( ppt Files)<\/a><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[et_pb_section bb_built=&#8221;1&#8243; 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Gopakumar &nbsp; [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row admin_label=&#8221;row&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; width=&#8221;80%&#8221; max_width=&#8221;1280px&#8221;][et_pb_column type=&#8221;1_4&#8243; custom_padding__hover=&#8221;|||&#8221; custom_padding=&#8221;|||&#8221;][et_pb_image src=&#8221;http:\/\/kgopakumar.dese.iisc.ac.in\/wp-content\/uploads\/sites\/7\/2017\/03\/kgopa3.jpg&#8221; show_in_lightbox=&#8221;off&#8221; url_new_window=&#8221;off&#8221; use_overlay=&#8221;off&#8221; animation=&#8221;left&#8221; sticky=&#8221;off&#8221; align=&#8221;left&#8221; force_fullwidth=&#8221;off&#8221; always_center_on_mobile=&#8221;on&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; animation_style=&#8221;slide&#8221; animation_duration=&#8221;500ms&#8221; animation_intensity_slide=&#8221;10%&#8221; animation_direction=&#8221;left&#8221; show_bottom_space=&#8221;on&#8221; align_last_edited=&#8221;on|desktop&#8221; align_tablet=&#8221;center&#8221;] [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":""},"_links":{"self":[{"href":"https:\/\/faculty.dese.iisc.ac.in\/kgopakumar\/wp-json\/wp\/v2\/pages\/38"}],"collection":[{"href":"https:\/\/faculty.dese.iisc.ac.in\/kgopakumar\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/faculty.dese.iisc.ac.in\/kgopakumar\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/faculty.dese.iisc.ac.in\/kgopakumar\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/faculty.dese.iisc.ac.in\/kgopakumar\/wp-json\/wp\/v2\/comments?post=38"}],"version-history":[{"count":74,"href":"https:\/\/faculty.dese.iisc.ac.in\/kgopakumar\/wp-json\/wp\/v2\/pages\/38\/revisions"}],"predecessor-version":[{"id":219,"href":"https:\/\/faculty.dese.iisc.ac.in\/kgopakumar\/wp-json\/wp\/v2\/pages\/38\/revisions\/219"}],"wp:attachment":[{"href":"https:\/\/faculty.dese.iisc.ac.in\/kgopakumar\/wp-json\/wp\/v2\/media?parent=38"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}