1. Center for More-Electric-Aircraft Power System, Key Laboratory of New Energy Generation and Power Conversion of Jiangsu Province, Nanjing University of Aeronautics and Astronautics, Nanjing, China
2. Department of Electrical Engineering, Institute of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai, China
3. State Grid Jiangsu Electric Power Company Ltd., Research Institute, Nanjing, China
4. Energy Conversion Research Center, Politechnica University of Timisoara, Hunedoara, Romania