基于特征矩阵的地铁车站架空高压输电线路接地故障定位技术  

Ground Fault Location Technology for Overhead High Voltage Transmission Lines in Subway Stations Based on Feature Matrix

作　　者：方磊 FANG Lei(China Railway Construction Corporation Transportation Operation Co.,Ltd.,Tianjin 300110,China)

机构地区：[1]中铁建交通运营集团有限公司,天津300110

出　　处：《价值工程》2024年第4期131-133,共3页Value Engineering

摘　　要：常规的高压输电线路接地故障定位节点的设定多为独立形式,定位的效率较低,导致定位移位差值提高,为此提出对基于特征矩阵的地铁车站架空高压输电线路接地故障定位技术的设计与验证分析。根据当前测定需求及标准的变化,先进行线路故障接地特征提取,采用多目标的方式,提升定位的效率,部署多目标故障定位节点,以此为基础,设计特征矩阵线路接地故障定位模型,采用单端锁定实现故障定位处理。测试结果表明:对比于传统多暂态特征量聚类输电线路接地故障定位测试组、传统MRSVD-GRU输电线路接地故障定位测试组,本次所设计的特征矩阵高压输电线路接地故障定位测试组最终得出的定位移位差值被较好地控制在0.25以下,说明在特征矩阵的辅助与支持下,当前所设计的故障定位结构更加灵活,对于接地故障的定位速度较快,具有实际的应用价值。The conventional setting of grounding fault location nodes for high-voltage transmission lines is mostly in an independent form,which results in low positioning efficiency and increased positioning displacement difference.Therefore,this paper proposes the design and verification analysis of grounding fault location technology for overhead high-voltage transmission lines in subway stations based on feature matrix.Based on the current measurement requirement sand changes in standards,the first step is to extract the grounding characteristics of line faults,adopt a multi-objective approach to improve the efficiency of localization,deploy multi-objective fault localization nodes,and design a feature matrix line grounding fault localization model based on this.Singleend locking is used to achieve fault localization processing.The test results show that compared with the traditional multitransient feature clustering test group and the traditional MRSVD-GRU transmission line grounding fault localization test group,the final positioning displacement difference obtained by the designed feature matrix high-voltage transmission line grounding fault localization test group is well controlled below 0.25,indicating that with the assistance and support of the feature matrix,the current designed fault localization structure is more flexible.The positioning speed for ground faults is fast and has practical application value.

关 键 词：特征矩阵 地铁车站 架空结构 高压输电线路 接地故障 定位技术 

分 类 号：U231.8[交通运输工程—道路与铁道工程]