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Adaptive traveling waves based protection of distribution lines

机译：基于自适应行波的配电线路保护

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摘要

Single-phase-to-ground fault in power distribution system with neutral point non-effectively grounded has different fault characteristics compared with other short-circuit faults. Single-phase-to-ground fault will not lead to over current but generate travelling waves information. Overcurrent protection for other short-circuit faults can't be applied to protect single-phase-to-ground fault. In this paper, a fast identification algorithm for single-phase-to-ground fault based on traveling wave is proposed. The proposed algorithm can accurately identify single-phase-to-ground fault from other short-circuit faults. Based on the algorithm, adaptive protection of distribution lines is presented using travelling waves and overcurrent.
机译：与其他短路故障相比，中性点未有效接地的配电系统中的单相接地故障具有不同的故障特性。单相接地故障不会导致过电流，但会产生行波信息。其他短路故障的过电流保护不能用于保护单相接地故障。提出了一种基于行波的单相接地故障快速识别算法。该算法可以从其他短路故障中准确识别出单相接地故障。基于该算法，利用行波和过电流对配电线路进行了自适应保护。

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