应用于车载充电机的三相四线制差共模集成电感——一种带“准十字”差模磁支路的差共模集成电感  

Integration of DM and CM Chokes for 3P4W in the Application of On-board Charger:Integration of DM and CM Chokes with Quasi-cross DM Magnetic Branches

作　　者：杨海军 卢增艺 YANG Haijun;Member;CPSS;LU Zengyi(MSBU,Delta Electronics(Shanghai)Co.,Ltd,Shanghai 201209,China)

机构地区：[1]台达电子企业管理(上海)有限公司磁技术研发部,上海201209

出　　处：《电源学报》2024年第5期325-330,共6页Journal of Power Supply

摘　　要：随着环保、节能意识不断深入人心,对新能源电动汽车及其车载充电机的要求越来越高。磁性元件作为车载充电机中一类重要的元器件,也相应获得越来越广泛的关注与研究。针对车载充电机抗电磁干扰滤波电路中三相四线制差共模电感的集成进行理论分析和研究。基于电源应用背景、差共模电感集成原理及业界和学术界已有集成方案的对比分析,提出1种采用“准十字”差模磁支路的三相四线制差共模集成电感,通过对集成电感单体的磁场特性分析、偏磁情况下的电气性能研究及上机测试,验证了所提集成方案的有效性,可显著减小三相不平衡电流情况下差模磁支路的偏磁问题并有效帮助电源改善抗电磁干扰性能。In the background of environment protection and power-saving awareness,the requests for new energy electric vehicles and their on-board charger(OBC)keep growing.As one of the important components in the OBC module,magnetics is getting more and more attention accordingly.The magnetics integration of differential mode(DM)and common mode(CM)chokes for a 3-phase 4-wire(3P4W)electromagnetic interference(EMI)filter used in OBC is theoretically analyzed and studied.Based on the analysis and comparison of the background of power supply applications,the integration principle for DM and CM chokes,and the available integration schemes in industry and academia,an integration of DM and CM chokes for 3P4W with quasi-cross DM magnetic branches is proposed.Through the magnetic flux simulation analysis,electrical characteristics under DC-bias and the on-board tested data,the effect of the magnetics integration scheme was proved,i.e.,it can obviously decrease the DC-bias on DM magnetic branches in the case of unbalanced 3-phase current and effectively improve the anti-EMI performance of power supply.

关 键 词：“准十字” 磁集成 差模 共模 三相四线制 

分 类 号：TM552[电气工程—电器]