Analysis of adaptive single phase autoreclosing for high voltage transmission lines with various compensation levels

IEEE PES Power Systems Conference and Exposition, 2004. Pub Date : 2004-10-10 DOI:10.1109/PSCE.2004.1397543

M. Khoroshev, V. Faybisovich

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引用次数: 9

Abstract

High voltage transmission lines have their terminals connected to buses through circuit breakers, which may allow single-phase operation at each side of line. These transmission lines are typically equipped with compensating devices, for example, shunt reactors. When a single phase to ground short circuit takes place, relay protection initiates circuit breakers at both sides of the line to open a faulted phase. Due to the electromagnetic coupling with unfaulted phases, the secondary arc from the faulted phase to the ground is supported for some time. The use of field test and ATP software, allows the analysis of transient electromagnetic processes at the transmission line with various levels of compensation during single phase autoreclosing. A developed multifactor algorithm for adaptive autoreclosing, by using measurements of electrical quantities at the faulted line, will determine in real time mode the moment when a secondary arc is extinguished. As a result, reclosing on existing fault is avoided, while restoration of the normal power supply is performed with minimal time interruption.

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不同补偿水平高压输电线路单相自适应重合闸分析

高压输电线路的终端通过断路器连接到母线上，这样可以在线路的每一边进行单相操作。这些传输线通常配备有补偿装置，例如分流电抗器。当单相对地短路发生时，继电保护启动线路两侧的断路器以断开故障相。由于与非故障相的电磁耦合，从故障相到地的二次电弧被支撑了一段时间。使用现场测试和ATP软件，可以在单相自动重合闸期间分析具有各种补偿水平的传输线上的瞬变电磁过程。一种已开发的自适应自动重合闸多因素算法，通过测量故障线路上的电量，将实时确定二次电弧熄灭的时刻。因此，避免了对现有故障的重合闸，同时以最小的中断时间恢复正常供电。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IEEE PES Power Systems Conference and Exposition, 2004.

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