ISSN 2196-5625 CN 32-1884/TK
1. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071003, China 2. Hebei Key Laboratory of Distributed Energy Storage and Micro-grid, North China Electric Power University, Baoding 071003, China
This work was supported by National Natural Science Foundation of China (No. 51407077), Fundamental Research Funds for the Central Universities of China (No. 2017MS095) and Technology Project of State Grid Corporation of China Headquarter (No. 5204BB16000F).