1. State Grid Shandong Electric Power Company,Jinan,China
2. Weihai Wendeng Power Supply Company State Grid Shandong Electric Power Company,Weihai,China
3. State Grid Shandong Electric Power Research Institute,Jinan,China
4. Liaocheng Power Supply Company State Grid Shandong Electric Power Company,Liaocheng,China
5. Information&Telecommuniccations Company State Grid Shandong Electric Power Company,Jinan,China
6. Northeast Electric Power University,School of Electrical Engineering,Jilin,China