开关电源有源功率因数校正电路的设计与仿真研究（完整版）实用资料(可以直接使用，可编辑完整版实用资料，欢迎下载）摘要本文对Boost型功率因数校正技术进行了分析、设计和研究。详细分析了有源功率因数校正器的基本工作原理,通过比较几种不同拓扑的PFC变换器主电路的优缺点,和比较控制电路的几种不同控制方法的优缺点,明确本文所要研究的对象为平均电流控制(ACM的Boost型功率因数校正器。在此基础上对Boost主电路和控制电路进行数学建模,得出其状态方程和传递函数,运用仿真软件MATLAB中的Simulink工具,建立了Boost主电路和控制电路的Simulink仿真模型,并得出其仿真结果。本文根据Boost变换器的特点和要求,设计了一个具体、实用的带PFC功能的开关电源电路,并给出了具体设计步骤和电路参数的计算。平均电流控制的单相Boost功率因数校正电路,完全能够达到整流、高输入功率因数、升压、稳压、低纹波的目标,具有广阔的应用前景。关键词:功率因数校正;Boost变换器;仿真AbstractBasedonthesummaryofthefruitsoftheresearchoftheActivePowerFactorCorrection,thePFCsystem,whichadoptsBoostpowerconvertercircuitandAverageCurrentModecontrolscheme,iswellstudiedinthisthesis.Accordingtotheprincipleandthediscussionofthesingle-phaseactivepowercorrection,concludingdifferentstructuresofthemaincircuitandmethodsofthecontrollers,thePFCsystem,whichadoptsBoostpowerconvertercircuitandAverageCurrentModecontrolschemeisindicatedasthedevelopingdirectionofPFCandregardedasPFCsystemstructure.Then,thestatedifferentialequationsofidealBoostconverterandthegeneraltransferfunctionsofPWMconverterarededucedandthesimulationmodelsofidealconverterareshowedusingMATLAB.Besides,wedesignapracticalcircuitwiththefunctionofPFC,givingdiscretedesignstepsandthecalculationofthecircuitparameters.Finally,wecanconcludethatthePFCsystemwhichadoptsBoostpowerconvertercircuitandAverageCurrentModecontrolschemecanachievegoodperformance,whichcanbeusedwidelyinthefuture.Keywords:PFC(powerfactorcorrection;Boostconverter;Simulation目录第1章绪论..............................................................................................................11.1课题研究意义............................................................................................11.2功率因数....................................................................................................11.3功率因数校正方法....................................................................................21.4本文所做的主要工作................................................................................4第2章有源功率因数校正技术