摘要
典型的二维模糊控制器因缺少积分环节,难以消除稳态误差,因此控制的精度常常不能满足系统要求。而PI控制器具有良好的消除稳态误差的作用,所以通常将其与模糊控制器结合构成复合控制器。模糊-PI控制的结构多种多样,选取其中的一种——双模控制,通过在MATLAB/Simulink中建立其模型,对其进行了大量的仿真,将其结果与相同条件下典型模糊控制的仿真结果进行比较,得出双模控制在消除稳态误差方面优于模糊控制,并在参数选取方面得出了一定的结论。
For common fuzzy controller, to reduce steady-state error is not an easy job because of lacking of integrating element. Therefore the control of precision often can not meet the system requirements. Concerning that PI controller has a good effect on reducing steady-state error,people usually combine fuzzy controller and PI controller to compound controller. There are many diifferent structures of compound controller. Dual-mode controller is taken for simulating. By comparing lots of results of simunlations, derived dual-mode control to eliminate steady-state error is better than fuzzy control, and some suggestions are given in choosing parameters.
出处
《科学技术与工程》
2009年第11期3097-3100,共4页
Science Technology and Engineering
