1. Electrical Engineering DepartmentShanghai Maritime UniversityShanghaiPeople's Republic of China
2. Research Institute of Electrical Engineering and AutomationHangzhou Dianzi UniversityHangzhouPeople's Republic of China
3. Department of Electronic EngineeringCity University of Hong KongHong KongPeople's Republic of China
4. Energy Technology DepartmentAalborg UniversityAalborgDenmark