浅析配电网单相断线故障检测技术  

A Brief Analysis of Single-phase Disconnection Fault Detection Technology in Distribution Network

作　　者：张一新[1] ZHANG Yixin(Guangxi Electrical Polytechnic Institute,Guangxi Nanning 530007,China)

机构地区：[1]广西电力职业技术学院,广西南宁530007

出　　处：《广西电力》2022年第3期91-98,共8页Guangxi Electric Power

摘　　要：随着中压配电网架空绝缘导线覆盖率的提高,断线故障愈加频繁出现,不但影响电力用户生产作业,还存在致火、触电等风险,给系统供电安全可靠性带来严重威胁。目前对于配电网单相断线故障发生机理、故障特征的分析以及故障检测技术的相关研究已取得大量成果,有效提升了配电网断线故障处理能力。文章介绍了当前配电网发生断线故障的原因、故障类型以及故障后的典型电气量特征,总结了近年来单相断线故障检测技术的研究成果及其适用性,为现场断线故障保护算法的选择以及后续更优性能的断线故障检测方案的设计奠定了基础。With the improvement of the coverage rate of overhead insulated conductors in the medium voltage distribution network, disconnection faults occur more and more frequently. These faults only affect the production operations of customers, but also present risks such as fire and electric shock, which pose a serious threat to the security of the system and power supply reliability. At present, a lot of achievements have been made in the related research on the occurrence mechanism of single-phase disconnection fault in distribution network, the analysis of fault characteristics and fault detection technology, which effectively improves the ability of distribution network disconnection fault processing. This paper introduces the causes and types of disconnection faults as well as the typical electrical characteristics after the occurrence of faults in distribution network, and summarizes the research results and applicability of single-phase disconnection fault detection technology in recent years, and thus lays a foundation for the selection of the algorithm and the design of the subsequent disconnection fault detection scheme with better performance.

关 键 词：单相断线故障 故障特征 故障检测技术 适用性 

分 类 号：TM77[电气工程—电力系统及自动化]