信息融合技术在故障选线中的应用

Earth Fault Feeder Detection with Information Fusion

接地故障选线是小电流接地系统中长期存在的难题 ,通常采用的单一故障选线方法只对部分故障信息进行处理 ,选线的可靠性不高。文中把信息融合技术应用于故障选线 ,融合各种故障信息 ,综合各种故障选线方法 ,提出了基于馈线保护的故障线路模糊识别技术及基于配电自动化的故障线段聚类识别技术。

Earth fault feeder detection is a long-standing problem in the operation of ineffectively grounded distribution systems.Traditional single fault-detection method using only some parts of fault information has poor reliability.Information fusion technique is introduced and applied in fault feeder detection to fuse all kinds of fault information and integrate all fault detection methods in this paper.Techniques for fault feeder identifying with fuzzy analysis and for fault feeder-section identifying with cluster classing are developed.The results of EMTP simulations show that these information fusion methods can detect the fault feeder with high precision and robustness.