1. Institute of Modern Circuits and Intelligent InformationSchool of Electric and InformationHangzhou Dianzi UniversityHangzhouPeople's Republic of China
2. Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and EquipmentsSchool of Electrical and Power Engineering, and Xuzhou City Key Laboratory of High Efficient Energy Storage Technology and EquipmentsChina University of Mining and TechnologyXuzhouPeople's Republic of China