基于永磁同步电动机驱动系统传导电磁干扰模型的干扰预测和滤波器设计  

Interference prediction and filter design based on permanent magnet synchronous motor driving system conducting electromagnetic interference model

作　　者：吴颜飞 WU Yanfei(Xiangyang Hangli Electromechanical Technology Development Co.,Ltd,Xiangyang,Hubei 441052)

机构地区：[1]襄阳航力机电技术发展有限公司,湖北襄阳441052

出　　处：《电气技术》2023年第8期37-43,49,共8页Electrical Engineering

摘　　要：电磁干扰(EMI)广泛存在于场域耦合,危害严重,EMI滤波器能有效抑制电磁干扰。本文基于PSIM软件建立可预测的永磁同步电动机传导电磁干扰EMI滤波器仿真模型,在无插入EMI滤波器模型下进行共模(CM)、差模(DM)和EMI的干扰预测,并将Mil-Std461(28V)规定的干扰限制谱线降低10dB安全裕度作为参照谱线。通过该参照谱线与干扰预测对比得到干扰严重的频率带,据此应用PSIM EMI Design Suite进行滤波器设计和产品电磁兼容(EMC)测试,验证了该设计方法的可行性。Electromagnetic interference(EMI)exists widely in field coupling and has serious harm,and it can be effectively suppressed by EMI filter.In this article,a predictable conducted EMI filter simulation model of permanent magnet synchronous motor is established based on PSIM,and interference prediction of common mode(CM),differential mode(DM)and EMI is carried out in the model without insertion EMI filter.The reduction of 10dB safety margin of the interference limiting spectral line specified by Mil-Std 461(28V)is taken as the reference spectral line.By comparing the reference spectral line with the interference prediction,the frequency band with severe interference is obtained.Accordingly,the PSIM EMI Design Suite is used to design the power filter and the product EMC test,and the feasibility of the design method is verified.

关 键 词：电磁干扰(EMI) EMI滤波器 PSIM 仿真模型 

分 类 号：TM341[电气工程—电机] TN03[电子电信—物理电子学]