Prof. Kai Sun of Faculty of Electrical Engineering, Tsinghua University

Presentation I - "Energy Internet Practice in China"

Abstract: China is facing severe challenges on energy, environment, and economic development. In order to deal with the challenges, Energy Internet 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 is considered as a new energy ecosystem based on electricity with high penetration of renewable energy, the high synergy of multiple energy types, the high synergy of energy value chain and high participation of stakeholders. It consists of three layers: Synergistic energy network, cyber-physical energy system, and innovative energy business model. In this presentation, some undergoing practice examples of energy internet in China are introduced, such as energy LAN projects, the synergy of electricity and hydrogen, energy trades, and energy big data analysis.

Presentation II - "Power Electronics Techniques for Large Capacity Photovoltaic Generation Integrated into DC Grids "

Abstract: In the future smart grid, it is a significant development trend to integrate large capacity renewable energy into medium voltage and high voltage dc grids. In the presentation, the motivation and advantages of large capacity photovoltaic generation integration into dc grids have been discussed. The existing dc integration techniques of photovoltaic generation have been reviewed and compared, including the system configurations, converter topologies, and control strategies. Furthermore, a novel solution of dc grid-connected photovoltaic generation system with intermediate dc bus is proposed, which provide a new way to integrate solar power to dc grid with high efficiency.  

Biography:

Kai Sunreceived 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 Institute 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 is 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 is a IEEE Senior Member, a member of IEEE Power Electronics Society Sustainable Energy Systems Technical Committee, a member of IEEE Power Electronics Society Power and Control Core Technologies Committee, and a member of IEEE Industrial Electronics Society Renewable Energy Systems Technical Committee, and a member of IEEE IAS Industrial Drive Committee Awards Sub-committee. He serves as the TPC Vice Chair for IEEE ECCE2017 and IEEE ECCE-Asia2017. Dr. Sun is an Editor for the International Journal of POWER ELECTRONICS and an Associate Editor for the Journal of POWER ELECTRONICS. He was a recipient of the Delta Young Scholar Award in 2013.

Address:Beijing, China

Prof. Kai Sun of Faculty of Electrical Engineering, Tsinghua University

Biography:

Address:Beijing, China