计及分布式电源的配电网可靠性分析

大量的分布式电源接入配电网会对配电网的可靠性带来深刻的影响。针对分布式电源建立了配电网可靠性模型,结合计及停电用户数最优孤岛划分策略,对传统的最小割集法进行改进,分析分布式电源的位置以及容量对可靠性指标的影响,指出在实际的运行过程中,应该综合考虑各种因素的影响,合理利用分布式电源来提高配电网可靠性。

Analysis of Distribution Network Reliability Considering Distributed Generation

A large number of distributed generation （DG） have a profound impact on the reliability of distribution network. The island operation model is established aiming at the reliability for DG. The traditional minimal cut method is improved com- bined with the optimal island partition strategy considering the number of customer affected by interruption. The reliability for the four different simulation programs of IEEE RBTS BUS 6 is analyzed, which indicates that DG positions and its capacity will bring different influence on the reliability index. It is also pointed out that the practical operation should take all these factors into consideration so as to lay out the DG to improve the reliability of distribution network.