电缆-架空线混合线路故障测距方法综述

针对电缆–架空线混合线路的结构和特点,介绍了几种适用于混合线路的故障测距方法,包括基于分布参数模型的区段故障定位法、基于波速度归一算法的双端行波故障测距法、三相母线外加同一电压脉冲式单端行波故障测距法等。分析了各种方法的适用范围及其优缺点,最后对各种方法的应用前景作了初步评价。

A Survey on Fault Location Methods for Hybrid Transmission Lines Consisting of Power Cables and Overhead Lines

In view of the structure and features of hybrid transmission lines consisting of power cables and overhead lines, the authors enumerate several fault location methods suitable to hybrid transmission lines, including section fault location method based on distributed parameters model, two-terminal travelling wave based fault location method based on normalizing wave speed algorithm, one-terminal travelling wave based fault location method with the same voltage pulse imposed on three-phase buses, etc. Analyze the applicable range, merits and demerits of each method respectively. A preliminary evaluation on application prospects of these fault location methods is given.