[1] NARI Grp Corp, State Grid Elect Power Res Inst, Nanjing 211106, Jiangsu, Peoples R China
[2] China Elect Power Res Inst Nanjing, Nanjing 210003, Jiangsu, Peoples R China
[3] State Grid Xinjiang Elect Power Co, Elect Power Res Inst, Urumqi 830011, Peoples R China