Keynote Speakers | 主旨报告

Prof. Xiaodong Li, Macau University of Science and Technology, Japan

Xiaodong Li received the B.Eng. degree in electrical engineering from Shanghai Jiao Tong University, Shanghai, China, in1994, and the M.A.Sc. and Ph.D. degrees in electrical engineering from the University of Victoria, Victoria, BC, Canada, in 2004 and 2009, respectively. From 1994 to 2002, he was an Electrical Engineer with Hongwan Diesel Power Corporation, Zhuhai, China, where he conducted maintenance of the diesel power generation system. He joined the Faculty of Innovation Engineering, Macau University of Science and Technology, Macau, China, in 2009, where he is currently a Professor. His research interests include high-frequency power converters and its applications, AI applications in Smart Grid and Wind Power prediction. He has published more than 100 journal and conference papers with over 5000 citations (data from Google Scholar). He also holds four US patents and five Australia Innovation Patents. He is on the list of “the World's Top 2% Scientists” by Elsevier and Stanford University since 2022. He was a recipient of Industry Postgraduate Scholarship (IPS) from Natural Sciences and Engineering Research Council of Canada (NSERC) the IEEE Power and Energy Society Best Paper Prize in 2007 and the BOC Excellent Research Award from the Macau University of Science and Technology in 2013. Dr. Li is a senior member of IEEE, Chair of IEEE Macau Section in 2022-2026.

Speech Title: Optimized Transient Modulation and Control Strategies for Bidirectional Dual-Active-Bridge DC-DC Converters

Speech Abstract: Dual active bridge (DAB) converters are widely used in electric vehicles and DC transmission networks to connect two DC buses with different voltage levels. Their operation often requires rapid changes in the magnitude and direction of power. Phase-shift control is commonly adopted in dual-bridge converters. Under an instantaneous power command change, improper adjustment of the phase shift may lead to transient overcurrent and a long settling time. Therefore, this study focuses on regulating the phase-shift angles of different switching devices during fast power and direction transitions, enabling them to switch from one steady state to another as quickly as possible, without introducing DC bias current, overcurrent, or overvoltage. In this research, we present a detailed methodology for both conventional dual-bridge converters and resonant dual-bridge converters, covering investigations from open-loop to closed-loop control.