电网技术2026，Vol.50Issue(4)：1739-1748,中插99-中插103,15.DOI:10.13335/j.1000-3673.pst.2025.0092
利用智能软开关探测的配电线路相间永久性故障识别方法
Phase-to-phase Permanent Fault Identification Method of Distribution Line Based on Soft Open Point Detection
摘要
Abstract
The automatic reclosing of the distribution line without distinguishing the nature of fault will bring a secondary impact during a permanent fault.Therefore,this paper proposes a permanent fault identification method of distribution line based on soft open point(SOP)detection in a flexible interconnected distribution network.Firstly,a phase-to-phase permanent fault identification model of the distribution line and its applicable frequency band are given.Further,the control strategy of SOP is designed based on the analysis of the signaling requirements for solving the permanent fault model.Then,based on the idea of model identification,a permanent fault identification method of distribution line using the similarity of voltage structure is proposed,and the fault isolation and power supply restoration scheme with the cooperation of SOP is constructed.Finally,the proposed method is simulated and verified using PSCAD,and experimental validation was carried out.The results show that the proposed method can correctly identify the nature of the fault and locate the fault section.关键词
智能软开关/配电线路/永久性故障/探测信号/模型识别Key words
soft open point/distribution line/permanent fault/detection signal/model identification分类
信息技术与安全科学引用本文复制引用
常仲学,鲁鑫,徐瑞东,张贺铭,宋国兵..利用智能软开关探测的配电线路相间永久性故障识别方法[J].电网技术,2026,50(4):1739-1748,中插99-中插103,15.基金项目
国家重点研发计划项目"配电网高功率密度柔性互联技术和装备"(2023YFB2407400).Project Supported by National Key Research and Development Program of China(2023YFB2407400). （2023YFB2407400）
