轨道车辆低频磁场仿真的电磁环境建模分析

Modeling Analysis of Electromagnetic Environment for Low Frequency Magnetic Field Simulation of Rail Vehicles

在开展轨道交通车辆的低频磁场仿真时,常规方法是对设备箱体添加激励,测试上方对应位点幅值情况,经常会遇到随着测试位点高度的增加,仿真实测误差逐渐增大的情况。文章基于Feko仿真平台,通过建立多方向平面波模型模拟轨道车辆车体内的电磁环境,补充电磁环境参数后发现对于客室车体内各高度的低频磁场仿真误差得到明显修正。

When conducting low-frequency magnetic field simulation of rail transit vehicles,the conventional method is to add excitation to the equipment box and test the amplitude of the corresponding position above.It is common to encounter situations where the simulation measurement error gradually increases as the height of the test site increases.The article is based on the Feko simulation platform.By establishing a multi-directional plane wave model to simulate the electromagnetic environment inside the rail vehicle body,and supplementing the electromagnetic environment parameters,it is found that the low-frequency magnetic field simulation errors at various heights inside the passenger compartment body are significantly corrected.