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非故障相暂态电流在配电网故障选线中的应用

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摘要 配电网中发生最多的是单相接地故障,如何快速准确地检测出接地故障点是小电流接地系统实现配电自动化的一个重要研究课题。针对我国大量存在的配电网中只装设两相电流互感器的现象,提出基于非故障相暂态电流的单相接地故障选线的思想。该方法利用小波变换分析非故障相暂态电流,通过对暂态电流模极大值数值的比较实现故障线路的选择。ATP仿真分析的结果表明,该方法准确可靠。
作者 王铭
出处 《中国石油大学胜利学院学报》 2006年第4期12-14,56,共4页 Journal of Shengli College China University of Petroleum
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