1. School of Electric Power Engineering, South China University of Technology, 26467 Guangzhou, Guangdong, China, (e-mail: 201610101723@mail.scut.edu.cn)
2. Distribution Department, China Southern Power Grid South Electric Power Research Institute, 562237 Guangzhou, Guangdong, China, (e-mail: liuyl4@csg.cn)
3. School of Electric Power Engineering, South China University of Technology, Guangzhou, Guangdong, China, (e-mail: lcxin4537@163.com)
4. Guangzhou Jiayuan Electric Power Technology Co., Ltd, Guangzhou, Guangdong, China, (e-mail: danielzdh@126.com)
5. School of Electric Power Engineering, South China University of Technology, Guangzhou, China, 510641 (e-mail: lihf@scut.edu.cn)
6. School of Electric Power, South China University of Technology, Guangzhou, China, 510640 (e-mail: Wangg@scut.edu.cn)