基于多源信息融合的小电流接地系统故障选线方法研究  

Research of fault line selection method for small current grounding system based on multi-source information fusion

作　　者：何金朋 田书[2] 杨新平 

机构地区：[1]煤炭工业郑州设计研究院股份有限公司,河南郑州450000 [2]河南理工大学电气工程与自动化学院,河南焦作454003

出　　处：《工矿自动化》2013年第3期56-60,共5页Journal Of Mine Automation

基　　金：河南省教育厅科学技术研究重点项目(12B470002);河南省控制工程重点学科开放实验室资助项目(KG2011-15)

摘　　要：针对小电流接地系统故障选线难的问题,提出了一种基于多源信息融合的小电流接地系统故障选线方法。该方法以可能发生故障的线路集合、各线路故障特征集合和各线路故障特征规定的量域作为可拓融合的物元三要素,以故障角的大小为权重,把在小故障角下选线准确的能量选线法和大故障角下选线准确的小波包选线法有效融合,并结合重合闸技术实现了准确选线。仿真结果验证了该方法的有效性和合理性。In view of problem of difficult fault line selection for small current grounding system, thepaper proposed a tault line selection method tor small current grounding system based on multi-source information fusion. Taking fault line set, fault characteristics set of each line and amount domain regulated by fault characteristics of each line as three elements of matter element of extension fusion, taking size of fault angle as weight, the method effectively fuse energy line selection method with accurate line selection under small fault angle and wavelet packet line selection method with accurate line selection under big fault angle, so as to realize accurate line selection combining with reclosing technology. The simulation result validates effectiveness and reasonableness of the method.

关 键 词：小电流接地系统 单相接地故障选线 多源信息融合 小波包 能量选线 可拓检测 重合闸 

分 类 号：TD608[矿业工程—矿山机电]