1. Electric Power Research Institute of State Grid Fujian Electric Power Co., Ltd,Fuzhou,China,350007
2. State Grid Fujian Electric Power Co.Ltd.,Fuzhou,China,350003
3. State Key Laboratory of Power Grid Environmental Protection,Wuhan,Hubei Province,China,430074
4. North China Electric Power University,State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,Beijing,P.R. China,102206