1. Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science & Technology University, Beijing, People’s Republic of China
2. School of Electrical and Electronic Engineering, North China Electric Power University, Beijing, People’s Republic of China
3. School of Automation, Beijing Information Science & Technology University, Beijing, People’s Republic of China
4. State Grid Energy Research Institute, State Grid Corporation of China, Beijing, People’s Republic of China