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

作　　者：焦征南[1] 吕飞鹏[1] 胡亚平[1] 周鑫[1] 

机构地区：[1]四川大学电气信息学院,四川成都610065

出　　处：《四川电力技术》2009年第5期54-57,共4页Sichuan Electric Power Technology

摘　　要：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.

关 键 词：数学形态学 广义形态滤波 综合数学形态梯度 行波测距 

分 类 号：TM77[电气工程—电力系统及自动化]