1State Grid Power System Artificial Intelligence Joint Lab, State Grid Shandong Electric Power Company Electric Power Research Institute, Jinan, Shandong 250001, China
2Shandong Luneng Intelligent Technology Co., Ltd., Jinan, Shandong 250002, China
3State Grid Shandong Electric Power Company, Jinan, Shandong 250001, China
4School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China