[1] State Grid Jinhua Power Supply Co, Jinhua 32100, Zhejiang, Peoples R China
[2] Guodian Nanrui Technol Co Ltd, Nanjing 211106, Peoples R China
[3] Fuzhou Univ, Fuzhou 350108, Fujian, Peoples R China
[4] Xiamen Univ, China Ctr Energy Econ Res, Sch Econ, Xiamen 361005, Peoples R China