集成功率解耦的单相PFC AC/DC变换器设计及控制  

Design and control of single-phase PFC AC/DC converter integrated with power decoupling

作　　者：崔超[1] 李红梅[1] 张恒果 曹灵灵[1] 

机构地区：[1]合肥工业大学电气与自动化工程学院,安徽合肥230009

出　　处：《电子技术应用》2017年第7期140-142,147,共4页Application of Electronic Technique

摘　　要：对于电动汽车车载充电器,其前端PFC AC/DC变换器输出存在二倍频脉动功率,传统解决方法导致充电器使用寿命和安全可靠性的直接下降。为此,论文采用的方法降低了变换器输出脉动功率和电容容量,并基于功率解耦电路工作原理的分析,完成其关键参数的确定。针对PFC AC/DC变换器设计无模型非线性功率控制器,旨在提升变换器的动静态性能和鲁棒性,针对2 k W车载充电器,建立了集成功率解耦电路的PFC AC/DC变换器的SIMULINK仿真模型,通过系统仿真研究证实所建立的集成功率解耦电路的PFC AC/DC变换器一体化解决方案的可行性和有效性。In on-board chargers（OBCs）, the front-end PFC AC/DC converter outputs a ripple power pulsating at twice the line frequency. The traditional solution will decline the lifetime and reliability of OBCs. Therefore, this paper proposes the PFC AC/DC converter integrated with power deeoupling circuit which features a reduction of the output pulsating power as well as the output capacitance. Then, some key parameters are firstly determined. And a novel model-free nonlinear power controller is designed for PFC AC/DC converter which provides an improvement of the static and dynamic performance and system robustness. Moreover, a quasi-PR controller is used for the power decoupling circuit to totally absorb the output pulsating power. Finally, the Simulink model of proposed converter for a 2 kW OBC is set up and system simulation is implemented to demonstrate the feasibility and effectiveness of proposed integrated solution of PFC AC/DC converter integrated with power decoupling circuit.

关 键 词：PFC AC/DC变换器 二倍频脉动功率 功率解耦 无模型非线性功率控制 

分 类 号：TU411.01[建筑科学—岩土工程]