带有屏蔽线缆的电动车辆动力系统共模模型与预测  

Common Mode Prediction on Cable Shielded Drive System in Electric Vehicle

作　　者：孙铁雷[1,2] 林程[1] 曹万科[1] 

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]中国人寿财产保险股份有限公司,北京100033

出　　处：《电工技术学报》2012年第2期128-132,共5页Transactions of China Electrotechnical Society

基　　金：国家863计划资助项目(2008AA11A146)

摘　　要：以典型的PWM变频驱动电机系统为对象,研究了干扰通道寄生参数和高频干扰源的建模方法,同时在动力系统建模中分析了动力线缆屏蔽所起到抑制共模辐射的因素并建模。分别提出且建立了带有动力系统屏蔽线缆的系统级共模干扰的高频电路模型,并对变频驱动装置在电网侧和负载电机侧的传导干扰进行了计算,以一台工业产品驱动装置为对象进行了实验验证,测试结果与计算结果的对比证明了该文方法的正确性。A typical PWM variable-speed AC motor drive is studied in order to investigate the conducted electromagnetic interference （EMI） at both the input and output sides of the drive. High frequency equivalent circuit for the drive system which the cable are Shielded are proposed. The noise path required parasitic components extraction are implemented through theoretical analysis and experimental method. High frequency EMI source models are presented to consider PWM switching rise-time modeling. The overall circuit models for common-mode EMI prediction are obtained. The proposed method is verified by comparing the predicted spectrum with experimental tests.

关 键 词：电驱动 电磁兼容 共模传导干扰 屏蔽 

分 类 号：TN972[电子电信—信号与信息处理]