1. State Grid Zhejiang Electric Power Co., Ltd.,Hangzhou,China
2. Wenzhou Power Supply Company State Grid Zhejiang Electric Power Co., Ltd.,Wenzhou,China
3. Zhejiang Huayun Electric Power Engineering Design & Consultation Co., Ltd.,Hangzhou,China
4. Zhejiang University,College of Electrical Engineering,Hangzhou,China
5. Zhejiang University of Science and Technology,School of Automation and Electrical Engineering,Hangzhou,China