基于Matlab模拟和数字控制器的仿真研究

The Simulation Study of Analog Controller and Digital Controller Based on Matlab

提出了在单相功率因数校正电路中基于DSP的数字控制方案,阐述了功率因数校正意义和必要性,重点分析了模拟控制器和数字控制器在单相Boost PFC变换器中实现方法,同时给出了它们的Matlab仿真结果.通过仿真实验结果的比较,说明数字控制器在单相功率因数中的效果明显优于模拟控制器.

This paper proposes digital controlling plan based on DSP, and can solve those problems well. The article expounds the significance and necessity of PFC, and explains emphatically the realization methods of analog and digital controller in Single-Phase PFC converter. At the same time, the authers also give the simulated results in Matlab and prove the experimental effects that digital controller is priorer to analog controller by comparing experiment results.