 |
Distinguished Professor, Power Electronics
|
Jinjun LIU received his B.S. and Ph.D. degrees in Electrical Engineering from Xi’an Jiaotong University (XJTU), China in 1992 and 1997 respectively. He then joined the XJTU Electrical Engineering School as a faculty. In 1997, 1999, and 2010 respectively he participated in technology, professional, and management training programs at Advanced Technology Laboratories Inc. in USA, Milwaukee School of Engineering in USA, and Chinese University of Hong Kong. From late 1999 until early 2002, he was with the Center for Power Electronics Systems at Virginia Polytechnic Institute and State University, USA, as a visiting Scholar. In late 2002 he was promoted to a Full Professor and then the head of the Power Electronics and Renewable Energy Center at XJTU, which now comprises 12 faculty members and 150 graduate students and carries one of the leading power electronics programs in China. He served as an Associate Dean of Electrical Engineering School at XJTU from 2005 to early 2010, and the Dean for Undergraduate Education of XJTU from 2009 to early 2014. He currently holds the position of XJTU Distinguished Professor in Power Electronics sponsored by Chang Jiang Scholars Program of Chinese Ministry of Education.
Dr. LIU coauthored 3 books, published over 100 technical papers, holds 24 patents, and received several governmental awards at national level or provincial level for scientific or career achievements and the 2006 Delta Scholar Award. His research interests are power quality control and utility applications of power electronics, and micro-grids for sustainable energy and distributed generation.
Dr. Liu has served as the IEEE Power Electronics Society (PELS) Region 10 Liaison and then China Liaison for 8 years, an Associate Editor for the IEEE Transactions on Power Electronics for 8 years, and starting from 2015 the Vice President membership for PELS. He chaired the Asian Power Electronics Conferences Coordinating Committee from June 2012 to May 2014. He is on Board of China Electrotechnical Society and was elected to a Vice President of the CES Power Electronics Society in 2013. He is also on the Executive Board and was elected to a Vice President for the China Power Supply Society in 2013.
Power Systems based on Multiple Electronic Converters: Challenges to Power Electronics and Possible Solutions
One of the major developing trends of electric power systems recently is that more and more electronic power converters are being adopted either in stand-alone mode or grid-connected mode for different purposes like power interfacing or performance innovation/improving. A review of this trend for power systems is presented, followed by a detailed discussion about the overall challenge in fundamental methods and techniques to both power systems engineering and power electronics engineering, which is totally different from before. The challenge for power systems based on multiple electronic converters is then elaborated into four different aspects in power electronics area, including coordinating control of multiple converters, transfer control between local system and grid, stability analysis and specification, and system stabilization control. A probe into each individual aspect is subsequently supplied. Major technical issues are identified. Existing and the state-of-the-art solutions will be briefed, with a more extensive introduction to the work Xi’an Jiaotong University has completed recently. Future work that needs further research efforts will be addressed too.