1. State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China
2. State Grid Jibei Electric Power Co. Ltd., Langfang Power Supply Company, Langfang 065000, Hebei, China
3. National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi’an 710049, Shaanxi, China
4. Key Laboratory of Smart Grid of Shaanxi Province, Xi’an 710049, Shaanxi, China