摘要
由于小电流接地系统单相接地故障电流非常小,干扰影响严重,所以其故障选线一直是一个技术难题,很久以来没有得到圆满解决。在基于暂态零序电流频带能量的配电系统接地选线方法的基础上通过仿真分析了该方法对噪声信号的抗干扰能力,实验结果显示该方法能够在较强干扰的情况下实现正确选线,效果很好。
As the single-phase earth current in small current earthing system is very small,the interference effect amplified,so it remains hard to detect the fault line.Based on distribution system grounding fault line selection method by transient zero-sequence current frequency-band energy,through simulation analyses its ability to anti-jam the noise signal,experimental results show that the method can select the correct line in strong interference and works well.
出处
《华中电力》
2011年第1期68-71,共4页
Central China Electric Power
关键词
配电系统
故障选线
暂态算法
抗干扰设计
distribution system
fault line selection
transient algorithm
anti-interference design
