基于匀强磁场发生装置的地面磁感应检测设备评定方法研究  

Research on the Evaluation Method of Ground Magnetic Induction Testing Equipment Based on a Uniform Magnetic Field Generator

作　　者：王伟凡 王婧 李艳龙 姚永明 方佳鑫 WANG Weifan;WANG Jing;LI Yanlong;YAO Yongming;FANG Jiaxin(Infrastructure Inspection Research Institute,China Academy of Railway Sciences,Beijing 100081,China)

机构地区：[1]中国铁道科学研究院集团有限公司基础设施检测研究所,北京100081

出　　处：《大连交通大学学报》2024年第6期105-110,共6页Journal of Dalian Jiaotong University

基　　金：中国铁道科学研究院中日韩课题项目(2021YJ304)。

摘　　要：为避免向三相电网引入较大不平衡负载,电气化铁路接触网一般每隔一定长度轮换相序供电。自动过分相装置正常工作需要由轨道两旁设置的磁感应器为其提供及时、准确的分相区信息,因此需要采用检测设备对磁感应器进行周期检测。提出一种基于匀强磁场的地面磁感应检测设备评定方法,采用具有良好开放性的双平行线圈产生较大范围匀强磁场,从而实现地面磁感应检测设备不需要拆卸即可进行技术状态评定的目的。通过解析计算及数值计算分析了双平行线圈的设计原理,并制造原理样机对所提出评定方法的有效性和必要性进行试验验证。To avoid introducing significant unbalanced loads into the three-phase power grid, the contact network of electrified railways in China generally rotates phase sequence power supply every certain length. The regular operation of the automatic phase separation device requires the magnetic sensors set on both sides of the track to provide timely and accurate information about the phase separation zone. Therefore, it is necessary to use detection equipment to conduct periodic tests of the magnetic sensors. Therefore, it is necessary to use detection equipment to detect the magnetic inductors periodically. This article proposes an evaluation method for ground magnetic induction test equipment based on uniform magnetic fields, which uses double parallel coils with good openness to generate an extensive range of uniform magnetic fields, thus achieving technical status evaluation of ground magnetic induction test equipment without disassembly. The design principle of the dual parallel coils was analyzed through analytical and numerical calculations, and a prototype was manufactured to experimentally verify the effectiveness and necessity of the proposed evaluation method.

关 键 词：电分相 自动过分相 磁感应器 磁感应强度 匀强磁场 误差评定 

分 类 号：U223[交通运输工程—道路与铁道工程]