一种新的三端电气量行波测距方案

A New Scheme of Three-terminal Travelling Wave Fault Location Based on Mathematical Morphology

在现有的行波测距基础上,提出了基于数学形态学的三端电气量行波测距方案,先利用广义形态滤波器滤除现场信号中的噪声和脉冲信号,再利用综合数学形态梯度提取行波模极大值,快速准确检测出故障点。通过仿真验证了在选取合适的结构元素下,此方案是有效可行的。

On the basis of the existing travelling wave fault location, a new scheme of three - terminal travelling wave fault location based on mathematical morphology is proposed. Firstly, the general mathematical morphology is used to filter the noise and pulsing signal mixed in the wave signal, and then, the modulus maxima of synthetic mathematical gradient transform is used to find the fault location. The results of simulation verify this scheme is effective and feasible by selecting appropriate structural element.