1. North China Electric Power University,State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,Beijing,P.R.China,102206
2. State Grid Anhui Electric Power Corporation, Limited.,No.9 Huangshan Road,Baohe District,Hefei, Anhui,China,230000
3. State Grid Anhui Ultra High Voltage Company,No.397, Tongcheng South Road,Baohe District,Hefei, Anhui,China,230000.