Global non-quadratic D-stabilization of Takagi–Sugeno systems with piecewise continuous membership functions

Abdelmadjid Cherifi, Kevin Guelton, Laurent Arcese and Valter J.S. Leite

Applied Mathematics and Computation, 2019, vol. 351, issue C, 23-36

Abstract: This paper deals with the non-quadratic stabilization of Takagi–Sugeno (T-S) models with D-stability constraints. Based on a recently proposed Non-Quadratic Lyapunov Function (NQLF), which involves the mean values of the membership functions (MFs) over a given time interval, three theorems are proposed for the design of non-Parallel Distributed Compensation (non-PDC) controllers satisfying closed-loop D-stability specifications. Despite previous non-quadratic approaches and thanks to the nature of the considered NQLF, it is highlighted that the proposed LMI-based procedures not only apply for the global non-quadratic D-stabilization of T-S models, but also for a larger class of T-S models with piecewise membership functions (i.e. a class of switching nonlinear systems), since no requirement is needed regarding to the bounds of the MFs derivatives. The effectiveness of the proposed LMI-based conditions and their relative degrees of conservatism, compared with previous quadratic D-stabilization results, are illustrated through an academic example involving piecewise membership functions.

Keywords: Takagi–Sugeno models; D-stability; Non-PDC controllers; Global non-quadratic design; Linear matrix inequalities (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:351:y:2019:i:c:p:23-36

DOI: 10.1016/j.amc.2019.01.031

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