1. Polytechnic University,Electric Power Plants and Power System Automation Peter the Great St. Petersburg,Saint-Petersburg,Russia
2. Yanshan University,Department of Electrical Engineering,Qinhuangdao,China
3. Northeast Petroleum University,Department of Electrical Information Engineering,Qinhuangdao,China
4. Delhi Technological University,Department of Electrical Engineering,New Delhi,India
5. Yanshan University,School of Electrical Engineering,Qinhuangdao,China