[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[2] Beijing Inst Control Engn, Beijing 100190, Peoples R China
[3] Global Energy Interconnect Res Inst Co Ltd, State Key Lab Adv Transmiss Technol, Beijing 102209, Peoples R China
[4] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China