Abstract

Because the nonlinear relationship between the input and output generally exists in many actual systems. In this paper, a new design method of direct adaptive fuzzy controller is proposed for this class of SISO nonlinear systems. The adaptive law and constraint conditions of the system parameters are given in this study. The stability of the closed-loop system is proved with all state variables being uniformly bounded in the Lyapunov sense. Additionally, the convergence of the fuzzy control system is analyzed. Finally, the simulation results obtained for the practical example show the feasibility, effectiveness and widely use of the designed method.

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