电动汽车车载充电系统的设计和仿真  

Designing and Simulation of Charging System for Electrical Vehicle

作　　者：徐伟[1] 刘和平[1] 任发[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044

出　　处：《计算机仿真》2010年第12期307-311,共5页Computer Simulation

摘　　要：在电动汽车控制系统的研究中,针对满足电动汽车高功率因数的充电要求,设计了一种具有功率因数校正(PFC)功能的电动汽车车载充电系统。重点研究了充电系统PFC级平均电流控制的Boost变换器的电压、电流双闭环控制回路的设计方法和DC-DC级双管正激电路恒流回路恒压充电控制的设计方法。利用saber软件对整体充电系统模型进行仿真,并对其性能做出分析,充电系统功率因数相比传统无功率校正功能的充电系统得到显著提高。试验表明,充电系统PFC级很好地实现了功率因数校正和输出电压的预稳,DC-DC级也能够很好地实现恒流恒压充电。方案可以满足电动汽车充电的性能要求,并具有实际应用价值。In order to meet the electric vehicle＇s charging requirements for high power factor,this paper designed a kind of power factor correction function vehicle charging system for electric vehicles.Focusing on the design method of voltage,current double closed-loop control circuit of Boost converter with average current control of the charging circuit PFC-Level and the design method of the constant current-constant voltage charging control of DC-DC-level two-transistor forward circuit.At last,using saber software to simulate with the overall charging circuit model and analyzing its performance to verify the charging system＇s excellent performance.Compared to traditional charging system,the power factor correction of this charging system has been improved significantly.Charging system＇s PFC-level achieves a very good power factor correction and output voltage is pre-steady.DC-DC level can also be a good way to achieve constant current-constant voltage charging.The program can meet the performance requirements of charging electric vehicles and it is a practical application value of the charging system design.

关 键 词：功率因数校正 恒流恒压充电 平均电流控制 

分 类 号：TB24[一般工业技术—工程设计测绘]