摘要
为解决配电线路单相接地故障诊断准确率低的问题,引入行波信号开展了基于行波信号的10 k V配电线路单相接地故障诊断方法的研究。首先利用行波信号提取配电线路故障特征,然后设置配电线路两端行波记录点,通过测距定位确定故障位置实现配电线路单相接地故障诊断。结果表明,应用该方法后,配电线路单相接地故障诊断识别准确率达到98.5%以上,可行性较高。
To solve the problem of low accuracy in diagnosing single-phase grounding faults in distribution lines,a research on a 10 kV distribution line single-phase grounding fault diagnosis method based on traveling wave signals was carried out by introducing traveling wave signals.Firstly,the fault characteristics of the distribution line are extracted using traveling wave signals.Then,the traveling wave recording points at both ends of the distribution line are set,and the fault location is determined through distance measurement to achieve single-phase grounding fault diagnosis of the distribution line.The results show that after applying this method,the accuracy of diagnosing and identifying single-phase grounding faults in distribution lines reaches over 98.5%,indicating high feasibility.
作者
尹向东
YIN Xiangdong(Zhangjiagang Power Supply Branch,State Grid Jiangsu Electric Power Co.,Ltd.,Suzhou,Jiangsu 215600,China)
出处
《自动化应用》
2024年第3期198-200,共3页
Automation Application
关键词
行波信号
10
kV配电线
单相诊断
接地故障
traveling wave signal
10 kV distribution line
single-phase diagnosis
ground fault
