1. Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
2. Department of Computer Science, Wesleyan University, Middletown, CT, USA
3. Power System Dispatching Automation Research Institute, China Electric Power Research Institute Company Ltd., Beijing, China
4. Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou, China
5. Automation Department, Tsinghua University, Beijing, China
6. Electric Power Research Institute, Guizhou Power Grid Company Ltd., Guiyang, China