基金Project(51875481)the National Natural Science Foundation of ChinaProject(2682017CX011)the Fundamental Research Foundations for the Central Universities,China+2 种基金Project(2017M623009)the China Postdoctoral Science FoundationProject(2017YFB1201004)supported by the National Key Research and Development Plan for Advanced Rail Transit,ChinaProject(2019TPL_T08)the Research Fund of the State Key Laboratory of Traction Power,China.