1. Department of Automation, Zhejiang University of Technology, Hangzhou, China
2. College of Electrical and Information Engineering, Hunan University, Changsha, China
3. Zhejiang Zheneng Xingyuan Energy Saving Technology Company Ltd., Hangzhou, China
4. Institute of Advanced Technology, Nanjing University of Posts and Telecommunications, Nanjing, China
5. School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore
6. Power Dispatching and Control Center of China Southern Power Grid, Guangzhou, China