Title :
On Stability and Stabilization of T–S Fuzzy Time-Delayed Systems
Author :
Souza, Fernando O. ; Mozelli, Leonardo A. ; Palhares, Reinaldo M.
Author_Institution :
Dept. of Electron. Eng., Fed. Univ. of Minas Gerais, Belo Horizonte, Brazil
Abstract :
In this paper, the stability analysis and control design of Takagi-Sugeno (TS) fuzzy systems subject to uncertain time-delay are addressed. The proposed approach is based on linear matrix inequalities and the Lyapunov-Krasovskii theory, where a new fuzzy weighting-dependent Lyapunov-Krasovskii functional is introduced. By employing the Gu discretization technique and strategies to add slack matrix variables, less conservative conditions are obtained. Numerical experiments are performed to illustrate the effectiveness of the proposed methodology.
Keywords :
Lyapunov methods; control system synthesis; delay systems; fuzzy systems; linear matrix inequalities; stability; Gu discretization technique; Lyapunov-Krasovskii theory; T-S fuzzy time-delayed systems; Takagi-Sugeno fuzzy systems; control design; fuzzy weighting-dependent Lyapunov-Krasovskii functional; linear matrix inequality; slack matrix variables; stability analysis; stabilization; uncertain time-delay; Control; Takagi–Sugeno (TS) fuzzy systems; linear matrix inequalities (LMIs); stability; time-delay;
Journal_Title :
Fuzzy Systems, IEEE Transactions on
DOI :
10.1109/TFUZZ.2009.2032336