[1] North China Elect Power Univ, Sch Econ & Management, Beijing 102206, Peoples R China
[2] Univ Engn & Technol, Dept Elect Engn, Taxila, Pakistan
[3] City Univ Hong Kong, Dept Architecture & Civil Engn, Hong Kong, Peoples R China
[4] Comsat Univ Islamabad, Dept Mech Engn, Sahiwal Campus, Sahiwal Dist, Punjab, Pakistan
[5] North China Elect Power Univ, Beijing Key Lab New Energy & Low Carbon Dev, Beijing 102206, Peoples R China