模糊控制系统稳定性分析及控制器设计

Stability Analysis and Controller Design of The Fuzzy Control Systems

本文给出了模糊控制系统稳定性分析的相平面法和稳定区间法,并对应用这两种方法设计模糊控制系统进行了讨论。文中介绍一种在稳定区间内设计变结构模糊控制器的方法。并进行了仿真研究,结果表明,基于稳定性而设计的模糊控制系统不仅具有良好的动态及稳态的性能,而且具有很强的抗扰能力。

This paper presents the phase plane method and the stable region method to analyze the stability of the fuzzy control systems. And then the discussions about fuzzy systems designed using these two methods are given in the paper. Finally a set of design methods for variably structured fuzzy controllers are proposed and corresponding simulations are performed. The simulation results show that fuzzy control systems which are designed based on the stability have not only good dynamic and steady state feature but also strong rejection ability to disturbances.