摘要
短路故障为配电网最常见的故障。随着我国智能电网计划的提出,配电网户外开关将具有数据采集的功能。如何对户外开关采集到的电参数进行分析处理,以实现短路故障的判别将大大提高电网的健康性。通过对电参量的快速傅里叶变换,实现配电网短路故障特征的提取。仿真结果证明该方法能准确提取短路故障信息,对保障电网安全具有指导意义。
Short circuit fault is the most common fault in the distribution network. As the national smart grid planning is put forward, the outdoor switch in distribution network will has data acquisition function. That how to analyze the data collected by outdoor switch for short circuit fault criterion will greatly improve the robustness of power grid. The short circuit characteristics of distribution network was achieved by the fast fourier transform of electrical parameters in this paper. The simulation results show that this method can accurately extract the short circuit fault information, and the proposedmethod has a guiding significance of power grid safety security.
出处
《煤矿机械》
北大核心
2013年第10期254-255,共2页
Coal Mine Machinery
关键词
短路故障
特征提取
傅里叶变换
short circuit fault
feature extraction
Fourier transform
