摘要
新能源汽车主要依靠电力驱动,其电力线缆传输高电压、大功率的瞬变信号,加之线缆本身的天线效应,使其成为电动汽车中最主要的电磁干扰发射源。因此电力线缆极易对周围线缆产生串扰。通过分析电力线缆辐射电磁干扰的来源,利用FEKO仿真工具建立了电力线缆和相邻线缆的简化模型。通过改变仿真模型中线缆屏蔽层及金属线槽的设置,对比分析了这些因素对抑制串扰和干扰发射的影响。根据仿真结果,得出了降低线缆屏蔽层阻抗和增加金属线槽的使用,有助于抑制线缆串扰的结论。
The new-energy vehicles are mainly powered by electricity. Its power cables transmit the transient signals of high voltage and power. In addition, the antenna effect of the cable makes the cable become the dominant emission source of electromagnetic interference in electric vehicles. The power cable also exerts the crosstalk on the surrounding signal cables. This research analyzes the source of electromagnetic interference in power cables. Then the simplified model of power cable and adjacent cable is established using FEKO tool. The effect of these factors on restraining crosstalk is compared and analyzed by changing the settings of the cable shield layer and the metal groove in the simulation model. Finally, based on the simulation results, it is concluded that reducing the impedance of the cable shielding layer and increasing the use of the metal groove are helpful to minimize the cable’s crosstalk effects.
作者
杨兴超
李志勇
张占营
陈卓
陈新美
YANG Xingchao;LI Zhiyong;ZHANG Zhanying;CHEN Zhuo;CHEN Xinmei(Xuchang KETOP Testing Research Institute Co.,Ltd.,Xuchang Henan 461000,China)
出处
《太赫兹科学与电子信息学报》
北大核心
2020年第2期313-317,共5页
Journal of Terahertz Science and Electronic Information Technology
基金
国家自然科学基金资助项目(U1804252)。
作者简介
杨兴超(1979–),男,本科,高级工程师,从事电气、电子类产品的电磁兼容试验与研究工作。email:yangxingchao@ketop.cn;通讯作者:张占营,email:zhangzhanying@ketop.cn。
