1. School of Artificial Intelligence and Automation, Key Laboratory on Image Information Processing and Intelligent Control of Ministry of Education, Huazhong University of Science and Technology, Wuhan, China
2. China-EU Institute for Clean and Renewable Energy, Huazhong University of Science and Technology, Wuhan, China
3. School of Electric Power Engineering, South China University of Technology, Guangzhou, China
4. School of Electrical and Information Engineering, Tianjin University, Tianjin, China