1. Key Laboratory of Smart Grid of Ministry of EducationTianjin UniversityTianjinPeople's Republic of China
2. ABB Inc.RaleighNCUSA
3. Wuhan Metro Operation Co., LtdWuhanPeople's Republic of China
4. Beijing Electric Power CorporationBeijingPeople's Republic of China
5. School of Electrical Engineering, Nantong UniversityNantongPeople's Republic of China