基于FTU的配电网故障快速定位的研究

针对目前配电网广泛采用故障定位方法存在实时性不够、精度欠缺的局限，提出了一种矩阵法和行波法相结合的故障快速定位的思路。该方法利用FTU采集的配电网故障电流数据和对故障行波传播时间的测量，结合矩阵法和行波法实现平均误差约0.358%的故障位置确定。仿真分析表明，该方法具有定位精确高、实时性好的特点，能够在故障初期实现对故障位置的准确判定。

Study on fast fault location of distribution network based on FTU

In allusion to the limitations of the real-time fault location method widely used in the distribution network，this paper proposed a fast fault location method combining the matrix method with the traveling wave method.The method used the fault current data of the distribution network collected by FTU and the traveling wave time measurement of the fault traveling wave，and combines the matrix method and the traveling wave method to determine the location of the fault with an average error of about 0.358%.The simulation analysis showed that the method has the advantages of accurate location，high real-time performance and accurate location of the fault at the initial stage of the fault.