1.5KW电动汽车车载充电器的研究与设计  

Research and Design of 1.5KW Electric Vehicle Charger

作　　者：丁绪星[1] 张玉峰[1] 姚健[1] 

机构地区：[1]安徽师范大学物理与电子信息学院,安徽芜湖241000

出　　处：《安徽师范大学学报（自然科学版）》2015年第2期134-137,共4页Journal of Anhui Normal University(Natural Science)

基　　金：安徽省科技攻关项目(1301023003)

摘　　要：LLC半桥拓扑结构具有高频化、高效率和高功率密度等优势,广泛应用于中小功率开关电源中.本文基于基波分析法分析了LLC半桥谐振原理,采用Mathcad分析了不同K值下的Q值增益曲线对直流输出的影响.采用5阶段充电法研究设计了一种功率1500W、主频率120KHz的电动汽车车载充电器.经实验测试,该车载充电器电压纹波小,噪声低,比同类产品效率提升约2%.LLC half bridge topology is widely used in small and medium power switching power supply,which has the advantages of high frequency,high efficiency,high power density and etc.LLC half bridge resonance is analyzed based on fundamental wave analysis method.Mathcad is used to anglyze different k-values of Q-value gain influence of curve on DC output.A kind of 1500 W electric vehicle charger with main frequency of 120 KHz by using 5stage charging method is designed.Experimental tests show that the on-board charger voltage ripple is small with a low noise and high efficiency which is about 2% higher than similar products.

关 键 词：LLC半桥 基波分析法 车载充电器 

分 类 号：TN86[电子电信—信息与通信工程]