Bidirectional DC-DC Converters for Medium and Low Voltage DC Power Systems

Due to the inherent advantages of DC power systems over the conventional AC power systems such as no harmonics, no reactive power, high efficiency, DC power systems have become an emerging and promising alternative in various fields, microgrids, distribution networks, and electric transportation applications.
Bidirectional DC-DC converters, including isolated or non-isolated ones, are key elements in DC power systems, which are employed as the interfaces between medium voltage DC (MVDC) bus and low voltage DC (LVDC) bus. As well, the bidirectional DC-DC converters are indispensable in the energy storage systems.
This special session aims to summarize and share the recent advances of bi-directional DC-DC converters in terms of different aspects: new topologies, accurate modeling method, novel modulation and control techniques, applications issues of wide bandgap power devices, protection issues and applications in new industry fields. After the deep discussions on current research status, a roadmap for future developments of bi-directional DC-DC converters is expected to be formed, which could be the references for academics and industry working on various applications of DC power systems.

Session Chairs:

Dr. Kai Sun received the B.E., M.E., and Ph.D. degrees in electrical engineering from Tsinghua University, Beijing, China, in 2000, 2002, and 2006, respectively.He joined the faculty of Electrical Engineering, Tsinghua University, in 2006, where he is currently an Associate Professor and the Director of Power Electronics and Electrical Machine Systems. From Sep 2009 to Aug 2010, he was a Visiting Scholar at Department of Energy Technology, Aalborg University, Aalborg, Denmark. From Jan to Aug 2017, he was a Visiting Professor at Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada. His current research interests include power electronics for renewable generation systems, microgrids, and energy internet.
Dr. Sun serves as the Chair of IEEE Power Electronics Society (PELS) Beijing Chapter, and leads the IEEE PELS DC Microgrids Technical Thrust. Dr. Sun serves as an Associate Editor for IEEE Transactions on Power Electronics, IEEE Journal of Emerging and Selected Topics in Power Electronics, and Journal of Power Electronics. Dr. Sun served as the TPC Vice Chair of IEEE ECCE2017 and IEEE ECCE-Asia2017. He also served as the General Co-Chair of 2018 International Future Energy Challenge (IFEC2018). He was a recipient of Delta Young Scholar Award in 2013, and Youth Award of China Power Supply Society (CPSS) in 2017.

Dr. Jung-Ik Ha received the B.S., M.S., and Ph.D. degrees in electrical engineering from Seoul National University, Seoul, Korea, in 1995, 1997, and 2001, respectively. From 2001 to 2002, he was a researcher in YASKAWA Electric Co., JAPAN. From 2003 to 2008, he worked for SAMSUNG Electronics Co., KOREA as a senior and principal Engineer. From 2009 to 2010, he was a chief technology officer, LS Mecapion Co., KOREA. Since 2010, he has been with the Department of Electrical and Computer Engineering at Seoul National University where he is now an Associate Professor. He was a Visiting Scholar of Massachusetts Institute of Technology(MIT), MA, USA from 2016 to 2017.
Prof. Ha is an IEEE Fellow and the Editor-in-Chief, Journal of Power Electronics. He is also the Vice President of Korean Institute of Power Electronics. His research interests are on circuits and control in high efficiency and integrated electric energy conversions for various industrial fields.

 

Speakers:

Marco Liserre, Kiel University, Germany

Hui Li, Florida State University

Subhashish Bhattacharya, North Carolina State University

Jung-Ik Ha, Seoul National University, Korea

Keiji Wada, Tokyo Metropolitan University, Japan

Honnyong Cha, Kyungpook National University, Korea

Victor Ferreira, Kiel University, Germany

Kai Sun, Tsinghua University, China