摘要
针对单端行波故障测距算法由于行波波速的不确定性而导致故障测距结果不精确的问题,文章提出了一种新型的单端行波故障测距算法,该算法基于小波变换,利用故障点二次反射波、对端母线反射波、初始行波之间的测距关系,消除了行波波速的影响。仿真结果表明,该算法具有一定的有效性和可行性。
To solve the problem of inaccurate fault ranging result caused by uncertainty of wave speed of traveling wave by use of algorithm of single-end traveling wave fault ranging, the paper proposed a new type of ranging algorithm of single-end traveling wave fault ranging. The new type of fault ranging algorithm bases on wavelet transform and makes use of ranging relations among the secondary reflection of fault point, the reflection of end-to-end bus and the initial traveling wave to eliminate influence of wave speed of traveling wave. The simulation result showed that the new type of fault ranging algorithm has the certain effectiveness and feasibility.
出处
《工矿自动化》
2009年第9期52-55,共4页
Journal Of Mine Automation
基金
煤炭青年基金资助项目(117160)
关键词
煤矿电网
故障测距
行波
小波变换
奇异性
模极大值
power network of coal mine, fault ranging, traveling wave, wavelet transform, singularity, modulus maximum
