1. Shanxi Energy Internet Research Institute,Taiyuan,P. R. China,030032
2. College of Electrical and Power Engineering, Taiyuan University of Technology,Taiyuan,P. R. China,030024
3. State Grid Shanxi Electric Power Marketing Service Center,Taiyuan,P. R. China,030008
4. Institute of Artificial Intelligence and Advanced Computing, Hunan University of Technology and Business,Changsha,P. R. China,410205