摘要
常规的配电线路单相接地故障快速识别方法主要使用分支路测距矩阵定位故障节点,容易受对地过渡电阻的影响,导致故障识别误差偏高。因此,设计了一种全新的基于小波分解配电线路单相接地故障快速识别方法,即提取配电线路单相接地故障分类,利用小波分解生成单相接地故障快速识别流程,从而实现配电线路单相接地故障的快速识别。实验结果表明,设计的配电线路单相接地故障快速识别方法的故障识别误差较低、准确性较高,具有一定的应用价值,降低了故障维护经济损耗。
The conventional fast identification method for single-phase grounding faults in distribution lines mainly uses a branch distance measurement matrix to locate fault nodes,which is prone to high fault identification errors due to the influence of ground transition resistance.Therefore,it is necessary to design a new fast identification method for single-phase grounding faults in distribution lines based on wavelet decomposition.The classification of single-phase grounding faults in distribution lines was extracted,and a fast identification process for single-phase grounding faults was generated using wavelet decomposition,thus achieving fast identification of single-phase grounding faults in distribution lines.The experimental results show that the designed fast identification method for single-phase grounding faults in distribution lines has low fault identification error,accuracy,certain application value,and reduce economic losses in fault maintenance.
作者
龚俊源
GONG Junyuan(Guizhou Power Grid Co.,Ltd.,Guiyang Jinyang Power Supply Bureau,Guiyang 550081,China)
出处
《通信电源技术》
2023年第24期10-12,共3页
Telecom Power Technology
关键词
小波分解
配电线路
单相接地故障
快速识别
wavelet decomposition
distribution lines
single-phase grounding fault
quick recognition
