1. Guangdong Power Grid Co., Ltd,Guangzhou Power Supply Bureau, China Southern Power Grid,Guangzhou,China
2. Zhejiang Electric Power Co., Ltd,Zhejiang Electric Power Marketing Service Center, State Grid Corporation of China,Hangzhou,China
3. Southern Power Grid Supply Chain Group, China Southern Power Grid,Guangzhou,China
4. Xiangtan Institute of Technology,Electronic Information Engineering,Xiangtan,China