含分布式电源的配电网故障选线与定位方法研究综述

Research on Fault Line Selection and Location Methods in Distribution Network With DG

随着分布式电源(distributed generation,DG)及新能源发电技术突破性的发展、基础设施项目全面实施等,明显增加了配电系统在规划与运行方面的复杂性,使供电范围越来越大、配电结构越来越复杂。目前含分布式电源并入配电网,并逐渐在配电网系统大量应用,分布式电源的接入,潮流由单向变为双向,由此引发的故障短路特征与传统配电网存在较大不同,对分布式电源配电网故障线路快速切除,尤其是故障馈线快速识别方法与定位方法提出了更高标准。针对目前含分布式电源配电网发展的需求,总结了含分布式电源配电网的故障选线方法及定位方法研究现状,为含分布式电源配电网故障选线与定位新方法研究提供了一定参考。

With the breakthrough development of distributed generation(DG)and new energy generation technology,and the full implementation of infrastructure projects,the complexity of distribution system planning and operation increase significantly,making the range of power supply areas increasingly large and the distribution structure more complex.At present,the distribution network with distributed power is gradually applied in a large number of distribution network systems.With the access of distributed power supply,the power flow changes from“unidirectional”to“bidirectional”,and the fault short circuit characteristics caused by this will be greatly different from that of traditional distribution network.Higher standards are proposed for the rapid removal of fault lines in distributed generation distribution network,especially for the rapid identification and location of fault feeders.According to the development requirements of distribution network with DG,the location method of distribution network with generation are summarized,and provide some reference for the new environment of fault line selection and location in distribution network with DG.