电力系统及其自动化学报2019，Vol.31Issue(1)：31-39,9.DOI:10.3969/j.issn.1003-8930.2019.01.006
应用等效网络原理的新型配电网故障定位技术
Novel Fault Location Technology for Distribution Network Based on Equivalent Network Principle
李振兴 1孟晓星 1李振华 2翁汉琍 2程宜兴1
作者信息
- 1. 三峡大学电气与新能源学院,宜昌 443002
- 2. 新能源微电网湖北省协同创新中心(三峡大学),宜昌 443002
- 折叠
摘要
Abstract
In consideration of the variation of the source-load structure of distribution network and the power flow level, a novel fault location method is proposed in this paper with the application of equivalent network principle. Based on the distributed parameter model,the electrical data collected in a distributed way are used to calculate the voltage and cur?rent at each node along the line,thus determining the fault area initially. Then,the equivalent network parameters at both ends of the fault area are calculated. Finally,on the basis of the network,the fault location is analyzed and deter?mined in light of different fault types. Combined with engineering practices,a distribution network model with distribut?ed generations(DG)is constructed in PSCAD,and the proposed fault location principle is verified by simulations, showing that the proposed method is suitable for various fault types at different locations of distribution network.关键词
分布式电源/故障类型/故障定位/等效网络/配电网保护Key words
distributed generation(DG)/fault type/fault location/equivalent network/distribution network protection分类
信息技术与安全科学引用本文复制引用
李振兴,孟晓星,李振华,翁汉琍,程宜兴..应用等效网络原理的新型配电网故障定位技术[J].电力系统及其自动化学报,2019,31(1):31-39,9.
