PULSATING DC LINK THREE-PHASE INVERTERS
Webinar by the IEEE Power & Energy Society (PES) and IEEE IAS, Montreal Chapter with Dr. Akshay Kumar Rathore
Sinusoidal Pulse Width Modulation (SPWM) and space vector modulation (SVM) have been widely adopted for three-phase sine AC output from a fixed dc link if the dc link voltage is much higher than desired three-phase output. However, if the source/dc link voltage is lower than the load voltage, then frond-end dc/dc converters becomes necessary leading to the design of the multistage power conversion system. To implement existing SVM or carrier based modulation, traditionally a large costly unreliable electrolytic capacitor is employed to develop a high voltage intermediate dc link. Novel Single-reference-Six-Pulse Modulation (SRSPM) eliminates the dc link electrolytic capacitor allowing pulsating dc link voltage waveform at the inverter input. It substantially reduces the cost, size, and weight and improves reliability of the system. This novel SRSPM is simple and results in saving of 87% switching losses. The concept has been experimentally demonstrated with closed loop control to achieve 97% efficiency in lab.
Date and Time
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- Date: 05 Nov 2021
- Time: 05:00 PM to 07:00 PM
- All times are (GMT-05:00) America/Toronto
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- MONTREAL, Quebec
- Canada
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fadloullah1@yahoo.fr
- Co-sponsored by IEEE Power Energy Society, Montreal Section
- Starts 20 October 2021 07:25 AM
- Ends 29 October 2021 05:00 PM
- All times are (GMT-05:00) America/Toronto
- No Admission Charge
Speakers
Akshay Kumar Rathore of IEEE PES Montreal Chapter
Pulsating DC Link Three-Phase Inverters
Sinusoidal Pulse Width Modulation (SPWM) and space vector modulation (SVM) have been widely adopted for three-phase sine AC output from a fixed dc link if the dc link voltage is much higher than desired three-phase output. However, if the source/dc link voltage is lower than the load voltage, then frond-end dc/dc converters becomes necessary leading to the design of the multistage power conversion system. To implement existing SVM or carrier based modulation, traditionally a large costly unreliable electrolytic capacitor is employed to develop a high voltage intermediate dc link. Novel Single-reference-Six-Pulse Modulation (SRSPM) eliminates the dc link electrolytic capacitor allowing pulsating dc link voltage waveform at the inverter input. It substantially reduces the cost, size, and weight and improves reliability of the system. This novel SRSPM is simple and results in saving of 87% switching losses. The concept has been experimentally demonstrated with closed loop control to achieve 97% efficiency in lab.
Biography:
Akshay Kumar Rathore received his Master of Technology degree in electrical machines and drives from the Indian Institute of Technology (BHU) Varanasi, India, in 2003, and the Ph.D. degree in power electronics from the University of Victoria, British Columbia, Canada in 2008. He received the Gold Medal for securing the highest academic standing in his Master’s degree among all electrical engineering specializations. He had two subsequent postdoctoral research appointments with the University of Wuppertal, Germany, and the University of Illinois at Chicago, USA. From November 2010 to February 2016, he was an Assistant Professor with the Department of Electrical and Computer Engineering, National University of Singapore. He is currently an Associate Professor and in the Provost Circle of Distinction at Concordia University, Montreal, Canada.
Dr. Rathore is an IEEE Fellow and a recipient of the 2013 IEEE IAS Andrew W. Smith Outstanding Young Member Achievement Award, 2014 Isao Takahashi Power Electronics Award, 2017 IEEE IES David Irwin Early Career Award, 2020 IEEE IAS Outstanding Area Chair Award, 2020 IEEE Bimal Bose Award for Industrial Electronics Applications in Energy Systems and 2021 Nagamori Award. He published about 280 research papers in international journals and conferences, including 92 IEEE TRANSACTIONS.
His research is mainly focused on the current-fed converters and multilevel inverters. He is currently serving as the Awards Department Chair, executive board member, and a Distinguished Lecturer of the IEEE Industry Applications Society.
Address:Montreal, Quebec, Canada
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