摘要
提出了一种配电网单相接地故障判别方法。通过采集三相电压及中性点电压,计算特征向量的相角,将其经过判别逻辑来判别故障类型及相别。经模拟试验证明,该方法判据简单、采集量少、判别速度快、准确度高、安全可靠。
A fault diagnosis method for power grid distribution was proposed. By sampling three phase voltage and neutral voltage, calculating phase angle of eigenvector, the fault type and phase difference were diagnosed by judgement logic. The simulation experiment proves that the method has merits of simple criterion, few sample, quick diagnosis, high accuracy and reliability.
出处
《低压电器》
北大核心
2009年第17期13-15,52,共4页
Low Voltage Apparatus
关键词
配电网
故障判别
相别
distribution grid
fault diagnosis
phase difference
