单相并联型APF改进双环控制技术仿真研究

Simulation of Single-phase Shunt APF with Improved Double Loop Controller

对单相并联型APF双环控制技术的控制器做出了改进,提出PI+重复的改进双环控制技术,阐述重复控制的思想,并对复合控制器进行设计,MATLAB仿真表明,改进技术能够改善其在高频中补偿能力不足的问题,提高了电流环的跟踪能力,达到很好的补偿效果。

This paper has made the improvement to the control technology of the controller for the single- phase shunt APF, put forward the improved control technology of PI with repetition, expounded the re petitive control thought, and designed the compound controller. The MATLAB simulation results show that the improved technology can improve the insufficient capacity in high frequency compensation, im- prove the current loop tracking ability, and achieve good compensation effect.