基于电流检测电流注入的车载充电机EMI混合滤波器设计方法  

Design Method of On-board Charger EMI Hybrid Filter Based on CSCI

作　　者：李宁[1] 柳明[1] 张常杰 张成林 LI Ning;LIU Ming;ZHANG Changjie;ZHANG Chenglin(School of Electrical Engineering,Xi’an University of Technology,Xi’an 710061,Shaanxi,China;Zhejiang EV-Tech Co.,Ltd.,Hangzhou 313300,Zhejiang,China)

机构地区：[1]西安理工大学电气工程学院,陕西西安710061 [2]浙江富特科技有限公司,浙江杭州313300

出　　处：《电气传动》2024年第9期19-25,共7页Electric Drive

基　　金：国家自然科学基金(52177193);陕西省重点研发计划(2022GY-182);西安市科技计划项目(22GXFW0078)。

摘　　要：针对目前车载充电机传统无源滤波器低频性能差的问题,在传统车载充电机无源滤波器的基础上加入有源反馈回路,提出了一种基于电流检测电流注入(CSCI)的车载充电机电磁干扰(EMI)混合滤波器设计方法,并给出了车载充电机混合滤波器结构及分析和反馈回路设计过程。实验结果表明,提出的新型EMI滤波器方案与已有车载充电机无源滤波器方案相比,传导测试和辐射测试结果都有大幅度的提升。At present,the traditional passive filter in on-board charger(OBC)has poor low-frequency performance,an active feedback loop was added to the traditional on-board charger passive filter,a design method of on-board charger electromagnetic interference(EMI)hybrid filter based on current sensing and current injection(CSCI)was proposed,and the structure,analysis and feedback loop design process of on-board charger hybrid filter were given.The experimental results show that compared with the existing on-board charger passive filter scheme,the new EMI filter scheme proposed has greatly improved the results of conduction test and radiation test.

关 键 词：车载充电机 混合滤波器 电磁兼容性 

分 类 号：TN713[电子电信—电路与系统]