Comparison of simulated and recorded transients for travelling wave fault location
Comparison of simulated and recorded transients for travelling wave fault location
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DOI：
10.1109/ptc.2003.1304372
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发表时间：
2003-06
期刊：
影响因子：
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通讯作者：
Tutar Mustafa;D.W.P. Thomas;C. Christopoulos;A. Raizer
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文献类型：
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作者：
Tutar Mustafa;D.W.P. Thomas;C. Christopoulos;A. Raizer
为了帮助超高压输电线路故障定位行波暂态的程序已被设计，其中的瞬变模拟和比较与那些记录。该模拟方案是基于著名的ATP程序，已被发现是令人满意的采样步长为800纳秒。通过连接到电流互感器二次电路的电流探头，以800 ns的采样率记录故障瞬态。离线分析程序已在Matlab/spl trade/中编写，然后将模拟的瞬变转换为允许与记录的瞬变直接比较的形式，并提供额外的分析例程。这大大提高了给定故障位置估计的置信度。ScottishPower超高压输电系统上记录的故障实例证明了该方案的实用性。
In order to assist in the location of EHV transmission line faults using travelling wave transients a program has been devised where the transients are simulated and compared with those recorded. The simulation scheme is based on the well-known ATP program, which has been found to be satisfactory for sample step times of 800 ns. The fault transients have been recorded at a 800 ns sample rate via a current probe attached to the secondary circuit of the current transformers. An offline analysis program has been written in Matlab/spl trade/ which then converts the simulated transients into a form that allows direct comparison with the recorded transients and also provides extra analysis routines. This greatly improves the confidence in a given fault location estimate. Example faults recorded on the ScottishPower EHV transmission system are given which demonstrate the utility of this scheme.