基于单端行波法的输电线路故障测距系统的设计

Design of fault location system in power transmission line based on single-ended traveling wave

快速准确故障定位是保证电力系统安全运行的有效途径之一。文章根据单端行波测距原理,设计出专门的硬件启动电路进行故障检测,采用高速、高精度的A/D转换芯片进行数据转换,高速数据处理芯片DSP进行数据处理和故障波头的提取,实现了输电线路故障点的快速、准确的定位。

Fault location equipment provides a safe running environment for electrical system. In this paper, based on location principle of single-ended traveling wave, hardware starting circuit was designed to detect fault. High speed, high accuracy A/D data conversion, and high speed DSP were adopted to deal with data and extract traveling wave head, and achieved a fast, accurate fault location of transmission line.