1. Sichuan University, College of Electrical Engineering,Chengdu,China
2. State Grid Sichuan Electirc Power Company,Chengdu,China
3. State Grid Sichuan Electric Power Company, Electric Power Research Institute,Chengdu,China
4. State Grid Sichuan Electric Power Company, Economic and Technological Research Institute,Chengdu,China
5. Huadian (Ningxia) Energy Co., Ltd.,New Energy Branch,Yinchuan,China