Time domain solution of fault distance estimation and arcing faults detection on overhead lines
Time domain solution of fault distance estimation and arcing faults detection on overhead lines
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DOI：
10.1109/61.736683
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发表时间：
1999
影响因子：
4.4
通讯作者：
M. Djurić;Z. Radojevic;V. Terzija
中科院分区：
文献类型：
--
作者：
M. Djurić;Z. Radojevic;V. Terzija
本文提出了一种用于电弧故障检测和故障距离估计的新数值算法。解在时域中给出。它是根据线路端电压和电流进行处理的。在估计中引入了一种简单的新的电弧电压数学模型。从而得出更准确的故障定位方法，特别是对于近距离故障。新算法可用于阻止自动重合闸。采用最小二乘法估计未知模型参数，包括线路电阻和电感、故障电阻和电弧电压幅值。新算法通过计算机模拟和实验室测试获得成功。
In this paper a new numerical algorithm for arcing faults detection and fault distance estimation is presented. The solution is given in the time domain. It is based on the line terminal voltages and currents processing. A simple new mathematical model of arc voltage is introduced in the estimation. Thereby, the more accurate approach to fault location is derived, particularly for the close-in faults. The new algorithm can be utilized for blocking the automatic reclosing. The unknown model parameters, including the line resistance and inductance, fault resistance and arc voltage amplitude, are estimated by using the least error squares method. The new algorithm is successfully tested through computer simulation and laboratory tests.