1. Power Electronics, Machine and Control Group (PEMC), The University of Nottingham, Nottingham, U.K.
2. Key Laboratory of More Electric Aircraft Technology of Zhejiang Province, University of Nottingham Ningbo, China, Ningbo, China
3. Department of Engineering and Applied Sciences, University of Bergamo, Dalmine, Italy
4. Department of Industrial Electrical Power Conversion, University of Malta, Msida, Malta