Fault Location Utilizing Unsynchronized Voltage Measurements During Fault
Fault Location Utilizing Unsynchronized Voltage Measurements During Fault
复制标题
故障期间利用不同步电压测量进行故障定位
DOI：
10.1080/15325000600748830
复制
发表时间：
2006
影响因子：
1.5
通讯作者：
Y. Liao
中科院分区：
文献类型：
--
作者：
Y. Liao
利用电压和电流作为输入，已经提出了多种输电线路故障定位方法。本文提出了几种只利用电压的算法，省去了电流互感器，从而消除了电流互感器饱和引起的误差。该算法适用于线路间故障、线路间故障和线路间故障。该算法利用线路两端的非同步故障电压测量，不需要故障前数据。充分考虑了线路的并联电容。通过仿真研究，取得了令人鼓舞的结果。
Diverse transmission line fault location methods have been proposed utilizing voltages and currents as inputs. This article develops several algorithms utilizing only the voltages, dispensing with current transformers and thus eliminating the errors caused by saturation of current transformers. The algorithms are applicable to line to ground faults, line to line faults, and line to line to ground faults. The algorithms utilize unsynchronized fault voltage measurements from two ends of a line and do not require pre-fault data. Shunt capacitances of the line are fully considered. Encouraging results have been obtained by simulation studies.