1. State Key Laboratory of Power Transmission Equipment and System Security and New Technology,, and College of AutomationChongqing UniversityChongqing400044People's Republic of China
2. State Grid Chengdu Power Supply CompanyChengdu,Sichuan610041People's Republic of China
3. State Grid Hunan Electrical Power Corporation Maintenance CorporationChangshaHunan410004People's Republic of China
4. State Grid Hunan Electrical Power CorporationChangshaHunan410000People's Republic of China