1. State Grid Zhejiang Electric, Power Company Lishui Power Company,Lishui,China
2. College of Software Technology, Zhejiang University,Ningbo,China
3. Science and Technology Network, Branch of Lishui Zhenghao, Electric Power Industry Group Co. LTD,Lishui,China
4. School of Aeronautics and Astronautics, Zhejiang University,Hangzhou,China