基于整周期自适应采样的树形配电线接地故障诊断

Fault diagnosis for line to ground of radial distribution network based on full period adaptive sampling

基于整周期自适应采样算法实现离线故障诊断信号倍频采样,并给出了在树形分支配电线路单相接地故障诊断中的具体应用。本分析法具有硬件电路简单,倍频采样精度高,运算速度快等优点。实验表明,本方法可从复杂噪声中提取诊断信号,实现故障分支识别和接地点测距。

Based on full period adaptive sampling method, the paper samples off-line fault diagnosis signal. An application of the method in single-phase-to-ground fault diagnosis is also presented on radial distribution network.The circuit is compact and has high precision and calculation speed with this method.Results show that the method can not only gain the diagnosis signal value from mixed noise but also realize fault-branch identification and fault location.