Robust dynamic output-feedback Script capital H∞ control for uncertain Takagi-Sugeno time-delay systems

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Tarih

2022

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Dergi ISSN

Cilt Başlığı

Yayıncı

Wiley

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

This work deals with the problem of robust output-feedback Script capital H-infinity control for a class of uncertain Takagi-Sugeno (T-S) fuzzy systems with state time-varying delays. The system is described by a state-space T-S fuzzy model with time-varying delays and norm-bounded parameter uncertainties. A robust Script capital H-infinity control strategy via Lyapunov-Krasovskii functionals for stability and performance conditions is derived. The T-S fuzzy-model-based framework is employed in analysis, and formulations are performed based on the solution of a set of delay-dependent linear matrix inequalities (LMIs). By solving the derived LMI conditions via a convex programming toolbox, a full-order robust dynamic output-feedback Script capital H-infinity controller is designed. The obtained robust output-feedback controller guarantees asymptotic stability of the closed-loop system and provides an Script capital H-infinity norm, that is, disturbance attenuation level, for all admissible uncertainties. In this sequel, three examples are given to reveal the effectiveness and merits of the proposed approaches.

Açıklama

Anahtar Kelimeler

linear matrix inequalities, output-feedback control, robust control, Takagi-Sugeno models, time-varying delays

Kaynak

Mathematical Methods in The Applied Sciences

WoS Q Değeri

Q1

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Q1

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