Funding for this research was provided by:
National Natural Science Foundation of China (51875484, U1734201, U1434201, 51775455, 51805450, 51475390)
Department of Science and Technology of Sichuan Province (20QYCX0101)
Scientific Research Foundation of the State Key Laboratory of Traction Power of Southwest Jiaotong University (2020TPL-T03)
State Key Laboratory of Traction Power (2020TPL-T12)
China Postdoctoral Science Foundation (2020M673281)
Article History
Received: 17 April 2020
Revised: 7 September 2020
Accepted: 9 September 2020
First Online: 29 September 2020