电网技术2023，Vol.47Issue(12)：4837-4846,10.DOI:10.13335/j.1000-3673.pst.2023.1576
应用分布式电压传感技术的配电线路行波故障测距
Traveling Waves Fault Location of Distribution Lines Based on Distributed Voltage Sensing Technology
摘要
Abstract
This paper proposes a fault location method for distribution lines,which proceeds in two steps:Firstly,a fault zone criterion based on the arrival time series of voltage traveling waves is used to achieve the fault zone discrimination;Then,the double ended traveling wave ranging method is applied to the determined interval to achieve the precise fault location.The core of our method is a distributed voltage sensor,which uses the Pockels principle to achieve the primary and secondary transmission of the line voltage,and then achieves the real-time transmission of line voltage information through the fiber optic channels,effectively accomplishing the centralized,synchronous,high-speed collection and processing of the remote node voltage.The proposed traveling wave method is also suitable for the accurate location of single-phase ground faults in the neutral non-effectively grounded systems.The simulation verifies the correctness of this method.The scheme is not affected by the neutral point operation modes and the system operation status with less than 100m of the fault location error,meeting the actual needs of the distribution network for fault location.关键词
配电线路/故障测距/分布式电压传感技术/行波差动/行波测距Key words
distribution feeder/fault location,distributed voltage sensing technology/traveling waves differential/traveling waves fault location分类
信息技术与安全科学引用本文复制引用
董新洲,陈彬书,董启环,戴媛媛..应用分布式电压传感技术的配电线路行波故障测距[J].电网技术,2023,47(12):4837-4846,10.基金项目
国家自然科学基金中英基金项目(52061635105).Project Supported by National Natural Science Foundation of China(52061635105). （52061635105）
