1. Shanghai Maritime University,Dept. of Electrical Engineering,Shanghai,China
2. Technical University of Crete,School of Electrical and Computer Engineering,Chania,Greece
3. Zhejiang HRV Electric Co. Ltd,Hangzhou,China
4. City University of Hong Kong,Dept. of Electrical Engineering,Hong Kong,China
5. Aalborg University,Dept. of Energy Technology,Aalborg,Denmark