廖俊宏;帅红;梁伟;

• 1:重庆市电力公司电力调度控制中心

摘要(Abstract)：

分析了现有的多种单相接地故障选线方法,研究基于暂态量的选线方法的灵敏度在CT采样过程中的影响。小电流接地系统的故障暂态信号很有可能被噪声信号覆盖或相互混淆,影响选线的正确性,本文提出在电压形成回路之前加入带通滤波器,利用滤波器除去对选线结果没有影响的工频信号,通过合理选取电流变送器的变比将故障暂态量放大,在保证暂态量的完整性和正确性的同时,提高了选线的可靠性。仿真计算结果表明,该方法可行且适用于实际应用。

关键词(KeyWords)： 配电网;单相接地故障;故障选线;选线灵敏度

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 廖俊宏;帅红;梁伟;

参考文献(References)：

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