斩控式交流调压在卷绕式镀膜机中的应用

摘要

研究了一种基于DSP控制的斩控式交流调压电源.分析了其控制原理,设计了以TMS320F2812型DSP为核心的控制电路.介绍了电源的拓扑结构,主回路工作原理,硬件控制系统与控制软件的设计.该电源具有电压调节范围宽、功率因数高、谐波容易滤除等优点.实验结果验证了设计的正确性和有效性.%An AC chopping voltage controller based on DSP is designed. The control principle is analyzed and the control circuit based on TMS320F2812 is designed. The power source topologies, main circuit working principle, the control circuit and program design are introduced, the power source has the advantage of wide range regulation of voltage, high power factor, easily eliminates the harmonics etc. The experiment results verify the validity of the control approach.