1. School of Electric Power, South China University of Technology, Guangzhou, Guangdong, China
2. Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization, Guangzhou, Guangdong, China
3. Shunde Inspection Institute of Special Equipment Inspection and Research Institute of Guangdong Province, Shunde, Guangdong, China
4. Guangdong Provincial Key Laboratory of Modern Geometric and Mechanical Metrology Technology, Guangdong Provincial Institute of Metrology, Guangzhou, Guangdong, China