基于配电网故障D 型行波的改进型检测定位方法

黄守 华*, 张 浩, 孙 晓燕, 杜 轶轩
国网安徽省电力有限公司黄山分公司

摘要

传统的配电网故障定位方法在复杂性方面存在一定的缺陷，特别是故障发生在支线上。本研究提出了一种基于D 型行波的故障定位新方法。该方法选择初始行波首先到达的测量点作为参考测量点，并计算出多个故障点之间接收到故障行波信号到参考测量点的距离。然后，选择多个故障点到参考测量点之间的最大距离作为最终故障点的位置。ATP 仿真软件和MATLAB 软件的仿真结果表明，该方法可以在很短的时间内快速而准确地定位故障。与现有算法相比，该方法无论故障是发生在干线还是支线上都是一致的，从而提高了配电网行波故障定位的准确性和可靠性。

关键词

配电网；故障定位；D 型行波

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