1. Tsien Hsue-Shen College, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, People’s Republic of China
2. School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, People’s Republic of China
3. School of Electrical Engineering, Beijing Jiaotong University Yangtze River Delta Research Institute, 16 Dingmao Technology Town, Zhenjiang, Jiangsu 212009, People’s Republic of China