Multi terminal DC grid based on VSC has become the research hotspot, because of many superiorities, especially, on renewable energy source integration such as multiple wind farms and solar power stations, and flexible access to multi-power supplies and multi-infeed systems.

The development of power semiconductor devices is the basis of the progress of DC grid applications. A novel power semiconductor device, IGCT Plus, is developed to improve the performances of the cost, loss and reliability of the major equipment for DC Grid. The bottleneck problem of IGCT application in power grid was solved.
On the other hand, major equipment, such as AC/DC converter, DC circuit breaker, DC transformer, DC tropper, is the main factor restricting DC grid progress.

The topic will focuse on the the scientific research and product manufacturing process of the novel power semiconductor devices and equipment. Key technologies of novel power semiconductor devices will be illustrated. Major equipment based on novel devices and new topologies will be presented. Several advanced demonstration projects of DC Grids and AC/DC hybrid systems will be introduced.

The Lecturer

Zhanqing Yu received his B. Sc. and Ph. D. Degree from the Department of Electrical Engineering, Tsinghua University in Beijing in July 2003, July 2008, respectively. After graduation, he became a post doctor and lecturer at the Department of Electrical Engineering, Tsinghua University in Beijing in July 2008 and July 2010 respectively, an associate professor in the same department in December 2012.

He is currently the Deputy Director of Department of Electrical Engineering, Tsinghua University. He is also the Deputy Director of DC Research Center, Energy Internet Research Institute, Tsinghua University. He has participated in several projects sponsored by High-Tech R&D Program (863 Program), National Basic Research Program of China (973 Program), National Natural Science Foundation of China. His research interests include DC grid, major equipment, power semiconductor devices. He has published more than 200 journal and conference papers, and owns more than 120 patents.