电动汽车低频电磁环境污染防治探讨

Low frequency electromagnetic environment pollution prevention and control of electric vehicle

目的为电动汽车低频电磁环境防治提出相应的解决对策。方法对不同类型电动汽车低频电磁环境进行检测对比分析。结果各类车型不同点位的监测数据为0.16~19.89μT;1、2、3、4号车主驾驶位脚部监测数据分别为19.89μT、1.32μT、4.27μT、1.82μT;监测高度越低数据增大越明显;动力母线形成的闭合回路面积越大监测数据越大;电机与驾驶室之间设置金属屏蔽隔板比不设置金属屏蔽隔板的监测数据小。结论根据调查分析结果,提出电动汽车低频电磁环境污染防治方法:优化线缆走线设计;增加人体与动力母线的距离(使用SUV型电动汽车);强化底板材料的电磁屏蔽效果;优化电机电池的布设位置。

Objective This paper puts forward the corresponding countermeasures for the low frequency electromagnetic environment control of electric vehicles.Methods Comparison and analysis of low frequency electromagnetic environment for different types of electric vehicles were made.Results The monitoring data of different locations of different types of vehicles are 0.16~19.89μT;the monitoring data of driver’s foot of No.1,No.2,No.3 and No.4 are 19.89μT,1.32μT,4.27μT and 1.82μT;The lower the monitoring height,the faster the data increase;The larger the closed loop area of the power bus,the greater the detection data;The monitoring data with metal shielding baffle between motor and cab are smaller than those without metal shielding baffle.Conclusion Combined with the testing results analyzed,we put forward methods of environment pollution prevention from the electric vehicle low frequency electromagnetic:optimize cable line design;increase the distance between the body and the power bus(using the SUV type electric vehicle);strengthen the electromagnetic shielding effect of the bottom material;and optimize the location of motor batteries.