Advanced Power Converters in Battery Energy Storage Systems for More-electric Smart Cities

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In recent years, China is facing severe challenges on energy, environment, and economic development. In order to deal with the challenges, energy internet for smart cities is developed to increase penetration of renewable energy, achieve clean and efficient use of fossil fuel energy, increase holistic energy efficiency, accelerate energy market openness and industry upgrade, and form new economic growth points. Energy internet consists of three layers: synergistic energy network, cyber-physical energy system, and innovative energy business model. Battery energy storage systems (BESS) are the main infrastructures in the synergistic energy network layer of energy internet, and power converters are the key elements in battery energy storage systems. In this presentation, the design and implementation of advanced bi-directional DC-DC converters with high efficiency and high power density for BESS are introduced. As well, the recent studies on wide bandgap power devices (SiC and GaN) based isolated DC-DC converters are presented.



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  • UNSW Sydney
  • Sydney, New South Wales
  • Australia 2052
  • Building: Electrical Engineering Building
  • Room Number: Room 102

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  Speakers

Kai Sun
Kai Sun

Topic:

Advanced Power Converters in Battery Energy Storage Systems for More-electric Smart Cities

Biography:

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. 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.

Address:Beijing, Beijing Shi, China