故障定位新算法CLP的研究与仿真

The Study and Simulation of New Algorithm CLP for Fault Location

针对输电线路故障定位因线路参数变化对定位准确度的影响,提出了能够对线路的参数和长度进行动态修正(CLP)的新算法,并可利用修正后的参数来求解两端的不同步相角差。通过大量仿真及与其他算法比较,该算法可明显提高故障定位的准确度。

In real power network, the parameters and length of the transmission line vary with time. It is very difficult to guarantee the accuracy of fault location. Currently the two-terminal fault location algorithm based on impedance using GPS to make data synchronous increases the cost of equipments though it improves the accuracy of fault location. This dissertation presents a new algorithm which can make dynamic correction for the parameters and length of transmission line. At the same time, it can work out the two-terminal asynchronous phase angle by correcting parameter. The simulation test shows that this algorithm can improve the accuracy of fault location evidently in contrast with other methods.