Fault-Location Algorithms Without Utilizing Line Parameters Based on the Distributed Parameter Line Model
Fault-Location Algorithms Without Utilizing Line Parameters Based on the Distributed Parameter Line Model
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DOI：
10.1109/tpwrd.2008.2002698
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发表时间：
2009
影响因子：
4.4
通讯作者：
Yuan Liao;N. Kang
中科院分区：
文献类型：
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作者：
Yuan Liao;N. Kang
提出了一种不需要线路参数的输电线路故障测距新算法。来自线路两端的电压和电流作为输入，不需要同步。可以利用故障前和故障数据两者。该方法基于分布参数线路模型，充分考虑了线路并联电容的影响。正序列线路参数也可以作为副产品来估计。没有对源阻抗和故障电阻进行假设。基于电磁暂态程序（EMTP）仿真数据的评估研究表明，新方法能够实现相当准确的估计。
This paper presents novel power system transmission-line fault-location algorithms without requiring transmission-line parameters. The voltages and currents from both ends of a line are taken as inputs and no synchronization is required. Both prefault and fault data may be utilized. The proposed methods are based on a distributed parameter line model and, hence, fully consider the impacts of shunt capacitance of the line. Positive-sequence line parameters may also be estimated as a byproduct. No assumption on the source impedance and fault resistance is made. Evaluation studies based on Electromagnetic Transients Program (EMTP) simulation data demonstrate that the new methods are able to achieve quite accurate estimates.