STABILITY ANALYSIS USING CONTROL RULE BASE FOR FUZZY CONTROL SYSTEM WITH MULTIVARIABLE

摘要

In this paper, the α-level stability for a fuzzy control system and the compatibility between the rule base and control arithmetic are introduced. The existence of finite fuzzy state total set with α-level is obtained. Furthermore, the paper points out that theMamdani control method is compatible in α-level with its control rule base. So the control dynamic features can be estimated by means of the rule base. The analysis shows that for a plantP controlled by the Mamdani controller is α-level stable as long as the plant is α-level stably controlled by the rule base.