开关功率变换器的动态建模及闭环控制  

Dynamic System Modeling and Closed-Loop Control of Switching Power Converter

作　　者：刘小宝[1] 师宇杰[1] 梁宁宁[1] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002

出　　处：《信息工程大学学报》2007年第2期238-241,共4页Journal of Information Engineering University

基　　金：军队科研基金资助项目

摘　　要：对于复杂的开关型功率变换器,其动态小信号模型的建立是一个很棘手的问题,本文提出了一种开关型功率变换器的建模方法——阶跃响应拟合法,并利用此方法建立了有源箝位推挽倍压变换器(Active Clamping Push-pull Dual Voltage Converter,ACPDC)的动态小信号模型。最后,采用建立的动态模型研究了该电路的闭环控制问题,并给出了仿真结果。It is very difficult for complicated switching power converter to build the dynamic smallsignal model. A modeling method for switching power converter, which is called step-response fitting algorithm, was proposed in the paper, and the dynamic small-signal model of the Active Clamping Push-Pull Dual Voltage Converter was built using this method. Finally, the problem of closed-loop control for this converter was discussed on this model, and the simulation result was given

关 键 词：开关型功率变换器 动态模型 闭环控制 

分 类 号：TN72[电子电信—电路与系统]