地铁车辆线缆辐射对客室低频磁场影响的仿真
Simulation of the Influence of Subway Vehicle Cable Radiation on Low-Frequency Magnetic Field in Passenger Compartments
刘晓晶 1冯丽娜 1穆晓彤 2夏天童3
作者信息
- 1. 中车南京浦镇车辆有限公司,江苏 南京 210031
- 2. 北京航空航天大学,北京 100191
- 3. 深圳市北航检测有限公司,广东 深圳 518052
- 折叠
摘要
该文针对地铁车辆客室内的低频磁场辐射问题,重点考察车载设备以外的影响因素.虽然通常认为车辆下方的线缆辐射会影响客室内的磁场分布,但这方面的研究相对缺乏.该文借助Feko软件平台,以地铁车辆的设计参数为基础,构建了线槽和线缆布局的模型,并以现场实测的谐波电流值作为模拟分析的激励输入.通过将线缆辐射作为唯一激励源,对线缆产生的磁场进行了仿真分析,并与型式试验实测磁场值进行对比.通过仿真可知,线缆对客室内磁场的贡献远低于型式试验中在相同位置测得的总辐射量.这为处理类似问题提供了一定的参考.
Abstract
This article focuses on the low-frequency magnetic field radiation problem in the passenger compartment of subway vehicles,with a focus on examining the influencing factors beyond onboard equipment.Although it is generally believed that the radiation from cables under vehicles can affect the magnetic field distribution in the passenger compartment,research in this area is relatively lacking.The article utilizes the Feko software platform,based on the design parameters of subway vehicles,to construct a model of cable tray and cable layout,and uses the on-site measured harmonic current values as the excitation input for simulation analysis.The magnetic field generated by the cable was simulated and analyzed by using cable radiation as the sole excitation source,and compared with the measured magnetic field values in type tests.Through simulation,it can be seen that the contribution of cables to the magnetic field in the passenger compartment is much lower than the total radiation measured at the same position in the type test.This provides a certain reference for dealing with similar problems.
关键词
轨道车辆/Feko/低频磁场/线缆辐射Key words
rail vehicles/Feko/low frequency magnetic field/cable radiation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据