摘要
随着车载电源转换模块(VPCM)对功率因数、输入电流谐波、输出电压纹波、转换效率、EMC等性能的要求越来越高,选择合理、高效的拓扑结构至关重要。文章在研究现有拓扑结构的基础上,设计一款6.6kW功率等级的车载电源转换模块,其中前级PFC电路采用Dual-Boost拓扑结构,满足高效率、高功率密度无桥PFC的要求;后级高频隔离DC-DC变换器电路采用基于数字化控制的LLC谐振拓扑,满足其对转换效率和输出电压纹波的要求。
With the increasing demand for power factor,input current harmonics,output voltage ripple,conversion efficiency,EMC and other performance of vehicle power conversion modules(VPCM),it is crucial to choose a reasonable and efficient topology structure.On the basis of studying the existing topology structure,this article designs a 6.6kW power level vehicle power conversion module.The front stage PFC circuit adopts a Dual Boost topology structure,which meets the requirements of high efficiency and high power density bridgeless PFC;The rear stage high-frequency isolated DC-DC converter circuit adopts a LLC resonant topology based on digital control,which meets its requirements for conversion efficiency and output voltage ripple.
作者
费琛
季景
李雯婷
FEI Chen;JI Jing;LI Wenting(Research and Development Center of Chery New Energy Vehicle Co.,Ltd.,Wuhu 241002;School of Integrated Circuit,Anhui University of Engineering,Wuhu 241000,China)
出处
《汽车电器》
2024年第7期5-8,共4页
Auto Electric Parts
基金
广东省重点领域研发计划项目(2020B0909030003)。
