1. State Grid Corporation of ChinaXicheng DistrictBeijing100031People's Republic of China
2. DC DepartmentState Grid Corporation of ChinaXicheng District, Beijing100031People's Republic of China
3. China Electric Power Research InstituteHaidian DistrictBeijing100192People's Republic of China
4. State Grid Economic and Technological Research InstituteBeijing102209People's Republic of China