【摘要】 以分布参数作为高压输电线路的模型,对平行双回线一回线上两点异相故障及两回线上两点故障提出了一种新的测距算法。该方法利用线路两端电压、电流的正序和负序分量,不需选代计算,并适用于一点故障情况。其测距精度不受系统阻抗变化、过渡电阻及不同步采样数据的影响。仿真计算表明该方法有效更多还原

【Abstract】 Based on distributed parameters line model, this paper presents a new fault location method for parallel transmission lines on I line two points different phases short circuit fault or two lines different point fault. The method only uses the positive sequence and negative sequence components of two terminal voltage and current. The fault location by solving the one order or quadratic equations, and the influences of system impedance variation, transient resistance and non-synchronous sampling are excluded. It can be used with one point fault location also. The satisfactory simulation result shows that the method is effective.更多还原