基于PSCAD的电缆高阻故障测距仿真研究

Simulation Research on high impedance fault location of cable based on PSCAD

通过PSCAD仿真软件建立电缆高阻故障测距的仿真电路模型,利用压敏电阻(避雷器)并联高压电阻的方法设计了高阻故障模型,对脉冲电压法开展电缆高阻故障测距的过程进行了仿真模拟。仿真结果表明:该仿真模型能够准确定位故障距离,故障测距结果准确,误差较小。

By PSCAD simulation software established simulation circuit model of the high resistance cable fault location,using highvoltage varistors（ MOA） parallel resistor design method of the high resistance fault model,of pulse voltage method to carry out high resistance cable fault location process is simulated. The simulation results show that the simulation model can accurately locate the fault distance,the result of fault location is accurate,and the error is small.