新能源车电机驱动系统的EMI协同分析  

Research on EMI Synergy Analysis of New Energy Vehicle Motor Drive System

作　　者：徐至江 谭康伯[1] 李敏 赵子文 陈同山 XU Zhijiang;TAN Kangbo;LI Min;ZHAO Ziwen;CHEN Tongshan(School of Electronic Engineering,Xidian University,Xi′an 710071,China;Geely Automobile Group,Ningbo 315336,China)

机构地区：[1]西安电子科技大学电子工程学院,陕西西安710071 [2]吉利汽车集团,浙江宁波315336

出　　处：《电子科技》2023年第10期24-31,共8页Electronic Science and Technology

基　　金：国家自然科学基金(61086338)。

摘　　要：针对电动汽车内部的电机驱动系统存在的电磁干扰问题,文中建立了车辆电机驱动系统电磁干扰的预测模型。基于电磁兼容原理,分析了车内电机驱动系统模块的电磁干扰机理。构建了模块中引起干扰的IGBT(Insulated Gate Bipolar Transistors)功率半导体器件模型,建模过程考虑了实际器件寄生参数的影响。利用复合建模方法建立了由驱动电机、逆变器以及电机控制系统组成的电机驱动系统模型,通过Simulink+Maxwell+Simplorer协同分析技术实现了电机驱动系统电磁干扰信号采集。仿真与实测数据的对比验证了文中方法的有效性,二者误差均未超过10 dB,并基于GB/T 18655-2018电磁兼容标准对结果超标的部分进行了优化整改。In view of the electromagnetic interference problem of the motor drive system inside the electric vehicle,a prediction model of the electromagnetic interference of the vehicle motor drive system is established in this study.Based on the principle of electromagnetic compatibility,the electromagnetic interference mechanism of the in-vehicle motor drive system module is analyzed.The model of the IGBT power semiconductor device that causes interference in the module is constructed,and the influence of the parasitic parameters of the actual device is considered in the modeling process.Through the Simulink+Maxwell+Simplorer collaborative analysis technology,the electromagnetic interference signal acquisition of the motor drive system is realized.The comparison between the simulation and the measured data verifies the effectiveness of the method proposed in this study,and the errors of both are less than 10 dB.Based on the GB/T 18655-2018 electromagnetic compatibility standard,the results of the parts exceeding the standard are optimized and rectified.

关 键 词：新能源车 电机驱动系统 电磁干扰 电磁兼容 永磁同步电机 协同分析 SVPWM算法 逆变器 

分 类 号：TN97[电子电信—信号与信息处理]