文献类型：期刊文献

中文题名：基于模糊PID控制的Cuk变换器研究

英文题名：Study of CUK converter based on Fuzzy-PID

作者：毛盾[1];郭丙君[1]

机构：[1]华东理工大学信息学院,上海200237

年份：2010

期号：3

起止页码：1

中文期刊名：自动化与仪器仪表

外文期刊名：Automation & Instrumentation

收录：CSTPCD

语种：中文

中文关键词：模糊控挑PID;DC/DC变换;CUk变换器

外文关键词：Fuzzy logic control ; PID ; DC/DC conversion ; Cuk converter .

摘要：将传统的PID控制应用于Cuk变换器的控制中,由于输出电压与占空比之间的非线性关系,当变换器工作在占空比较大的工作点时,输出电压会出现比较明显的超调和振荡现象。本文将模糊控制与PID控制相结合,通过设计两个模糊控制器,分别用于整定PID参数和调节PID控制器的输出,从而减小了变换器在大占空比时的超调和振荡,并且提高了变换器的动态性能。通过MATLAB/SIMULINK进行了建模与仿真,仿真结果表明,与传统PID控制相比,模糊PID控制具有比较理想的性能,同时对于输入电压与负载的变化也具有一定的鲁棒性。
Applying the traditional PID control to the CUK converter, obvious overshoot and oscillations of output voltage will be caused due to the nonlinear relation between the output voltage and the duty cycle when the converter works at a point of high duty cycle. In this paper, the PID control is combined with the fuzzy logic control through designing two fuzzy logic controller used to tune the PID parameters and the output of the PID controller respectively, thereby the overshoot and the oscillations mentioned above are diminished and the dynamical performance of the converter is improved. The work of modeling and simulation is accomplished based on the MATLAB/SIMULINK. The results indicate better performance compared with the traditional PID control and certain robustness to the variations of the input voltage and the load.