摘要
线性涡流制动系统在工作过程中会对周围环境产生电磁干扰,从而影响车载设备和轨旁信号设备的正常工作,阻碍涡流制动技术在高速列车上的应用。为了满足高速列车线性涡流制动系统辅助设计需求,文章建立了线性涡流制动系统的有限元分析模型,分析了列车速度、励磁电流及气隙大小对线性涡流制动系统气隙磁场的影响,并与理论分析模型相比较,验证所建立模型的正确性。分析线性涡流制动系统产生的电磁发射特性,结果表明:线性涡流制动系统产生的电磁发射在沿z轴方向时先增大后减小,靠近励磁电磁铁时电磁发射强度最大,沿y轴方向时呈周期性分布,沿x轴方向产生的电磁干扰较小。
The linear eddy current braking system will produce electromagnetic interference to the surrounding environment during the working process,which will afect the normal operation of on-board equipment and trackside signal equipment,and hinder the application of eddy current braking technology on high speed trains.In order to meet the auxiliary design requirements of linear eddy current braking system for high speed trains,the finite element analysis model of linear eddy current braking system is established in this paper.The influence of train speed,excitation current and air gap size on the air gap magnetic field of linear eddy current braking system is analyzed.The correctness of the model is verified by comparing with the theoretical analysis model.The electromagnetic emission characteristics generated by linear eddy current braking system are analyzed.The results show that the electromagnetic emission generated by linear eddy current braking system increases first and then decreases along the z-axis direction,and the electromagnetic emission intensity is the largest when it is close to the excitation electromagnet.It is periodically distributed along the y-axis direction,and the electromagnetic interference generated along the x-axis direction is small.
作者
张余峰
徐凯歌
ZHANG Yufeng;XU Kaige(Xuzhou Metro Group Co.,Ltd.;Xuzhou Metro Operation Co.,Ltd.,Xuzhou 221018,China)
出处
《电力机车与城轨车辆》
2023年第4期29-34,共6页
Electric Locomotives & Mass Transit Vehicles
关键词
高速列车
线性涡流制动系统
有限元分析
电磁发射特性
high speed train
linear eddy current braking system
finite element analysis
electromagnetic emission characteristic
作者简介
张余峰,男,硕士,从事轨道车辆设备结构和工艺研究,E-mail:zhangyufeng@xzdtjt.com。
