1. State Grid Anhui Chizhou Power Supply Company, Chizhou, China
2. School of Electrical Engineering and Automation, Hefei University of Technology, Hefei, China
3. Institute of Power Electronic, Zhejiang University, Hangzhou, China
4. Department of Electrical and Computer Engineering, Queen’s University, Kingston, ON, Canada
5. State Grid Anhui Electric Power Company Ltd., Hefei, China