【摘要】 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。更多还原

【Abstract】 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.更多还原