分布式发电对配电网继电保护和重合闸的影响

Effect of Distributed Generation on Relay Protection and Reclose of Distribution Network

近年来,分布式发电技术的研究越来越受到世界各国的重视。大量分布式发电的并网运行将深刻影响现有配电网络的结构、以及配电网中短路电流的大小、流向及分布。主要分析配网故障时,分布式电源对继电保护的影响,以及与自动重合闸之间的配合问题。

For the past few years,more and more countries attach importance to distributed generation.However,running with distributed generation will affect the magnitude,the flow direction and the distribution of short-circuit current in the distribution network as well as its structure.The effect of distributed generation on relay protection is analyzed as well as the coordination between the recloses when there is a fault in distribution network.