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A new fuzzy sliding mode controller design for delta operator time-delay nonlinear systems

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ABSTRACT This paper investigates the sliding mode control (SMC) problem for a class of delta operator uncertain time-delay nonlinear systems through Takagi–Sugeno fuzzy models. Some new sufficient conditions for asymptotic… Click to show full abstract

ABSTRACT This paper investigates the sliding mode control (SMC) problem for a class of delta operator uncertain time-delay nonlinear systems through Takagi–Sugeno fuzzy models. Some new sufficient conditions for asymptotic stability analysis of the sliding motion are obtained in terms of linear matrix inequalities with some convexification techniques. Then two new dynamic SMC design methods are synthesised to force the resulting closed-loop system states onto the sliding surface in finite time. Two simulation examples are finally given to illustrate the effectiveness of the proposed approaches.

Keywords: delta operator; sliding mode; delay nonlinear; time; nonlinear systems; time delay

Journal Title: International Journal of Systems Science
Year Published: 2019

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