1. School of Electrical and Information EngineeringKey Laboratory of Smart Grid of Ministry of EducationTianjin UniversityNankai DistrictTianjin300072People's Republic of China
2. National Electric Power Dispatching and Control CenterState Grid Corporation of ChinaBeijing100031People's Republic of China
3. State Grid Tianjin Economic Research InstituteTianjin300171People's Republic of China