A KIND OF FUZZY SLIDING MODE VARIABLE STRUCTURE CONTROL SCHEME USED IN CONTROLLING CHAOTIC SYSTEMS

Using model as an approximation for nonlinear system, the nonlinear system has been fuzzified into local linear model. The variable structure controller that is designed by using Lyapunov theory ensures the stability of fuzzy dynamic system. Being used in stably controlling two chaotic systems,the effect of the scheme has been certified. The fuzzy controller is simple, and needs no much rules.