1. Engineering Research Center of Low-Voltage Apparatus Technology of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
2. School of Mechanical Engineering, Zhejiang University, Hangzhou 310007, China
3. Shanghai Hongtan Intelligent Technology Co., Ltd., Shanghai 201306, China
4. Technology Institute of Wenzhou University in Yueqing, Wenzhou 325035, China