自寻优模糊集的模糊控制器算法＊

文献讨论了简单模糊控制器的基本原理和实现方法.文献考虑了简单模糊控制器的动态性能与稳态精度之间的矛盾,但是他是采取用线性切换的办法,没有充分发挥模糊控制器的功能。本文讨论了简单模糊控制器中模糊集的改变对系统性能的影响,为了解决简单模糊控制器的动态性能与稳态精度之间的矛盾,提出了可变模糊集的模糊控制器,仿真试验的结果表明,可变模糊集的模糊控制系统可以大大改善系统的响应性能。在可变模糊集的模糊控制器的基础上,进一步讨论了模糊集自寻优问题,提出模糊集自寻优算法。仿真结果表明,寻优后的模糊集模糊控制系统效果非常好,表明算法是行之有效的。

On Fuzzy Control Algorithms with Self-Optimizing Fuzzy Sets

The papers[1-5] discussed the basic principle and the realizing method of a simple fuzzy controller. The paper[6]considered the contradiction between the dynamic and stable performances of the simple fuzzy controller, but it utilized the linear switch to overcome this contradiction, without full play to the fuzzy controller's functions.After discussing the effect of the change of fuzzy sets on system performances in a simple fuzzy controller, this paper presents a new fuzzy control algorithm with variable fuzzy sets to overcome the contradiction as mentioned above, which can greatly improve the response performances of sytems from software simulations. Based on the algorithm, this paper presents further new fuzzy control algorithms with self-optimizing fuzzy sets. It is shown that these algorithms are very applicable from simulations. After self-optimizing fuzzy sets, the response performances of fuzzy control systems are very satisfactory.