Wei Wang1, Qingzhu Shao1, Shaoliang Wang2,*, Yiwei Zhao2, Yuanbo Ye1, Duanchao Li1, Mengyu Wu2
Energy Engineering, Vol.121, No.9, pp. 2569-2584, 2024, DOI:10.32604/ee.2024.051409
Abstract Aiming at the problem that the traditional short-circuit current calculation method is not applicable to Distributed Generation (DG) accessing the distribution network, the paper proposes a short-circuit current partitioning calculation method considering the degree of voltage drop at the grid-connected point of DG. Firstly, the output characteristics of DG in the process of low voltage ride through are analyzed, and the equivalent output model of DG in the fault state is obtained. Secondly, by studying the network voltage distribution law after fault in distribution networks under different DG penetration rates, the degree of voltage drop… More >
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