Wenshi Cao, male, Han, Kaifeng, Henan Province, Associate Professor, Master Tutor Member of CPC, Young Backbone Teacher of Higher Education Institutions in Henan Province, Executive Director of IEEE PES China Power System Protection and Control Technical Committee, Member of the 4th Teaching Committee of Applied Undergraduate Electrical Engineering and Automation Programs. Patent for invention: 1. A high resistance grounding protection method applicable to small resistance grounding system (ZL 2019 10543476.2), Wenshi Cao; Qing Wu et al, 2021.2 2. an optimization method of overhead line sectional switch position for distribution network (ZL 2019 10633733.1 ), Wenshi Cao; Yuxiang Li et al, 2020.10 et al. Scientific research projects: 1. Research and practice project on teaching reform of graduate education in Henan Province, "Research and practice on dynamic adjustment mechanism of master's degree authorization points in colleges and universities" (2017SJGLX002Y), 2017; Second prize of Henan Provincial Higher Education Teaching Achievement Award (Graduate Education), 2019, Henan Province, Henan Province, Henan Province, 2019. 24728; 2. university-level teaching reform project "research and practice of engineering training practice teaching system and operation mechanism of local colleges and universities under the new situation", 2017. 12. project of Henan Provincial Department of Education; et al.