کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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390317 | 661242 | 2011 | 19 صفحه PDF | دانلود رایگان |
This paper considers the delay-dependent robust H∞ control problem based on fuzzy hyperbolic model (FHM) for a class of uncertain nonlinear systems with time-varying delay. Firstly, FHM modeling method is presented for uncertain nonlinear systems with time-varying delay. Secondly, the new delay-dependent sufficient condition for the existence of a state feedback fuzzy hyperbolic tangent controller is proposed in terms of linear matrix inequalities (LMIs) by constructing a novel Lyapunov–Krasovskii functional. The robust FHM-based control law can guarantee that the closed-loop system is robustly asymptotically stable with a prescribed H∞ index. As more information of the FHM and the size of time-delay are taken into account, the proposed conditions are new and less conservative. Finally, three illustrative examples are given to show the effectiveness of using FHM-based controllers.
Journal: Fuzzy Sets and Systems - Volume 161, Issue 15, 1 August 2010, Pages 1993-2011