[1] Taizhou Univ, Sch Phys & Elect Engn, Taizhou, Zhejiang, Peoples R China
[2] Taizhou Univ, Sch Mech Engn, Taizhou, Zhejiang, Peoples R China
[3] Zhejiang Coll Water Conservancy & Hydropower, Dept Elect Engn, Hangzhou, Zhejiang, Peoples R China
[4] Zhejiang Univ Technol, Sch Comp Sci & Software, Hangzhou, Zhejiang, Peoples R China