重载铁路牵引回流对过分相感应装置的影响研究  

Study on Influences to Sensors of Phase Separation caused by Traction Return Current of Heavy Haul Railway

作　　者：李腾[1] 李立峰 马春莲 曹奕 LI Teng;LI Lifeng;MA Chunlian;CAO Yi

机构地区：[1]北京交通大学电气工程学院 [2]大秦铁路股份有限公司大同西供电段

出　　处：《电气化铁道》2022年第4期84-91,共8页Electric Railway

摘　　要：近年来,在大秦线出现了检修换轨期间机车车载VCB在非分相区频繁跳闸导致列车停运的事故,本文针对事故原因进行了测试及仿真分析。结果表明,由于涡流截断效应,备用轨的端部被磁化较明显,磁化的备用轨对车载过分相装置产生一定的干扰。通过对基于霍尔效应和传统的法拉第电磁感应原理的两种过分相磁感应装置的对比,得出数字式霍尔效应磁感应装置相较于传统装置不易受干扰,因而改变磁场信号感应装置的原理也是一种解决过分相感应装置误动的措施。In recent years,frequent tripping of train-carried VCB in non-phase separation section leads to a halt of train operation in course of repair and replacement of rails for Datong-Qinhuangdao railway.The tests and simulation analysis are made for the causes of the accidents,and the results show:magnetizing of ends of stock rail is obvious due to the eddy current cutoff effect,and the magnetized stock rail will generate certain interference to the train-carried phase separation device.Through the comparison of two types of phase separation magnetic induction devices based on Hall effect and traditional Faraday electromagnetic induction principle,it is concluded that the digital Hall effect magnetic induction device is less susceptible to interference than the traditional device,so changing the principle of magnetic field signal induction device is also a measure to solve the misoperation of phase separation induction device.

关 键 词：过分相磁感应装置误动 有限元交流磁场仿真 邻近效应 磁感应原理 

分 类 号：U239.4[交通运输工程—道路与铁道工程]