配电网接地故障定位传递函数法的试验

TEST ON A TRANSFER FUNCTION ALGORITHM FOR LOCATING GROUND FAULTS IN POWER DISTRIBUTION NETWORKS

配电网接地故障定位的传递函数法采用了注入高频信号获得故障信息的手段。大量仿真计算结果显示 ,该方法对配电网接地故障定位具有一些其他方法所不具有的优点 ,故对该方法进行了实验室线路模拟试验来进一步探讨论证。文中介绍了传递函数法试验线路模型 ,并对试验结果采用数字信号处理等手段进行了分析 ,将分析结果与已经获得的结论进行对比 ,验证了该方法的有效性 ,从而用试验手段证明了传递函数法在配电网接地故障中是切实可行的 。

The transfer function algorithm for locating single-phase-to-earth fault in power distribution networks consists in injecting high frequency signals to obtain information about the fault. The data from the calculation of simulation and analysis show that this algorithm possesses advantages that other algorithms haven't in ground fault positioning for power distribution lines. The experiments have been done to verify the effectiveness of this algorithm. Experimental results show that the algorithm under discussion is feasible.