【摘要】 以Boost拓扑电路为基础,对其进行深入分析,建立理想情况下的电压平衡方程式。提出一种给定占空比的电压和电流反馈的功率因数校正控制策略,利用MATLAB/Simu-link进行仿真。仿真结果表明,与平均电流法控制策略相比,在保证输出电压稳定控制精度的情况下,改善了系统的响应速度。在STM32F103X(ARM)为主控制器的实验平台上进行实验,结果表明系统输出电压稳定,纹波电压小,输入电流波形正弦度好,功率因数接近1。表明该策略具有良好的功率因数校正控制效果。更多还原

【Abstract】 Deep analysis and the voltage equation of the ideal situation are made based on boost topology circuit.Presented a strategy of power factor correction named given duty cycle of the voltage loop and current loop feedback control,used MATLAB / Simulink simulation.The simulation results show that,compared with average current method,it can ensure the accuracy of output voltage and improve the response speed of the system.The control strategy is validated in the experimental platform of STM32F103X(ARM)-based controller.The results show that the output voltage of the system is stable,with small ripple voltage.The input current is of good degree of sinusoidal,power factor close to 1,show that the strategy has a good control effect.更多还原