基于不对称分布参数的同杆双回线双端故障测距算法

Two-terminal fault locating algorithm for double-circuit lines on the same tower based on distributed parameter model using asymmetrical parameter

针对同杆双回线的特点,基于不对称的分布参数模型,提出利用线路两端电气量的同杆双回线故障测距算法。算法不需要两端数据同步,不需要判别故障类型,不受系统阻抗和过渡电阻的影响。利用自适应遗传算法(AGA)求解故障测距方程组,基于Matlab进行仿真计算,结果证明了算法的正确性和高精度。

According to characteristics of double-circuit lines on the same tower, based on distributed parameter model using asymmetrical parameter, this paper proposes a new fault-locating algorithm for double-circuit lines on the same tower using asynchronous data of two terminals. The algorithm does not require the synchronized data of two terminals and fault type identification and eliminates the influence of fault resistance and system impedance. It can solve the fault-locating equations with AGA. The proposed algorithm is proved to be correct and accurate by simulation results of Matlab.