1. Hefei University of Technology, School of Electrical Engineering and Automation, Hefei, AnHui, China
2. Chinese Academy of Science, Scho Institute of Plasma Physics, Hefei, AnHui, China
3. Huazhong University of Science and Technology, School of Electrical and Electronic Engineering, Wuhan, Hubei, China
4. China International Nuclear Fusion Energy Program Execution Center, Beijing, China