1. Electric Electric Power Research Institute of Guangdong Power Grid Co., Ltd,Guangzhou,Guangdong,China
2. Foshan Power Supply Bureau of Guangdong Power Grid Co., Ltd.,Foshan,Guangdong,China
3. Guangdong Power Grid Co., Ltd.,Guangzhou,Guangdong,China
4. Qingyuan Power Supply Bureau of Guangdong Power Grid Co., Ltd.,Qingyuan,Guangdong,China
5. School of Automation, Wuhan University of Technology,Wuhan,Hubei,China