partially supported by the China Postdoctoral Science Foundation (No.2019M651764);National Natural Science Foundation of China (Grant No.11601231,No.11601233);the Natural Science Foundation of Jiangsu Province (Grant No.BK20160708)。
supported by Fundamental Research Funds for the Central Universities(No.2019JBM057).
Direct current(DC)power grids based on flexible high-voltage DC technology have become a common solution of facilitating the large-scale integration of distributed energy resources(DERs)and the construction of advance...