1. Key Laboratory of Control of Power Transmission and Conversion, Shanghai Jiao Tong University, Shanghai, China
2. College of Electrical and Information Engineering, Hunan University, Changsha, China
3. Tsinghua-Berkeley Shenzhen Institute, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
4. Grid Planning and Research Center, Guangdong Power Grid Company, Guangzhou, China