[1] Department of Electrical Engineering, Tsinghua University, Beijing,100084, China
[2] State Key Laboratory of Control and Simulation of Power Systems and Generation Equipments, Tsinghua University, Beijing,100084, China
[3] Zhuhai Power Supply Bureau, Guangdong Power Grid Corporation, Zhuhai,519000, China
[4] Fujian Electric Power Company Limited Electric Economic Research Institute, Fuzhou,350012, China