1. Key Laboratory of Railway Industry on Safety Service Key Technologies for High-speed Train, Dalian Jiaotong University, Dalian, P.R. China
2. School of Locomotive and Rolling Stock Engineering, Dalian Jiaotong University, Dalian, People’s Republic of China
3. The State Key Laboratory of Heavy Duty AC Drive Electric Locomotive Systems Integration, CRRC Zhuzhou Locomotive CO. LTD, Zhuzhou, China
4. Key Laboratory of Whole Vehicle and Key Components of Urban Rail Transit Vehicles, CRRC Nanjing Puzhen Co. LTD, Nanjing, Jiangsu Province, China