Evaluation Method of DG Black Start of Distribution Network

In the power system after the power failure accident, the DG connected in the distribution network is used to cooperate with large units to restore the system black start, which has a higher success rate than the traditional black start method. It is necessary to evaluate the black start performance of multiple DG connected in the system and select the DG with the best performance as the black start power. In this paper, the advantages and disadvantages of DG black startup are evaluated by combining fuzzy AHP and extended grey correlation method. It is proved that multiple DG in a system can be evaluated effectively, and more reliable results can be obtained compared with the traditional strategy of single method.