1. Power Electronics, Machines and Control Group, Department of Electrical and Electronic Engineering, University of Nottingham, Nottingham, U.K.
2. Power Electronics, Machines, and Control Group, Department of Electrical and Electronic Engineering, University of Nottingham, Nottingham, U.K.
3. Key Laboratory of More Electric Aircraft Technology of Zhejiang Province, University of Nottingham, Ningbo, China
4. School of Information Engineering, Nanchang University, Nanchang, China