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首页> 外文期刊>Generation, Transmission & Distribution, IET >High-speed relaying scheme for protection of transmission lines in the presence of thyristor-controlled series capacitor
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High-speed relaying scheme for protection of transmission lines in the presence of thyristor-controlled series capacitor

机译：晶闸管控制串联电容器存在时用于保护传输线的高速继电器方案

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摘要

This study presents a new protective scheme for transmission lines which are compensated by thyristor-controlled series capacitor (TCSC). Employing the averages of voltage and current, a new criterion is introduced to discriminate between the forward and reverse faults. The validity of introduced criterion is tested for the inductive and capacitive modes of TCSC. During normal conditions, the averages of voltage and current are almost zero. While, following a short-circuit fault, they change from zero to non-zero values. The concept of fault superimposed components is used to extract the mathematical equations of the proposed scheme. Various case studies are considered to evaluate the performance of the proposed scheme. Computer and experimental simulations approve the efficiency of proposed method in high-speed protection of TCSC-compensated transmission lines.
机译：这项研究提出了一种新的输电线路保护方案，该方案由晶闸管控制的串联电容器（TCSC）进行补偿。利用电压和电流的平均值，引入了新的判据来区分正向和反向故障。针对TCSC的电感模式和电容模式测试了引入标准的有效性。在正常情况下，电压和电流的平均值几乎为零。而在发生短路故障后，它们会从零变为非零值。故障叠加分量的概念用于提取所提出方案的数学方程。考虑了各种案例研究，以评估所提议方案的性能。计算机和实验仿真验证了该方法在TCSC补偿传输线的高速保护中的有效性。

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