Robust Control for Uncertain Takagi-Sugeno Fuzzy Systems with Time-Varying Input Delay

Abstract

A control problem of Takagi-Sugeno fuzzy systems with a timevarying input delay and norm-bounded uncertainties is addressed. The input delay is well-known in making the closed-loop stabilization difficult. A sufficient condition for the robust fuzzy-modelbased stabilization is derived based on the Lyapunov-Razumikhin stability theorem, without the assumption of the variation rate on the delay. A constructive design scheme is presented in the form of the iterative convex optimization problem. The effectiveness of the proposed method is demonstrated by a numerical simulation of a nonlinear mass-spring-damper system

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