Robustness design of time-delay fuzzy systems using fuzzy Lyapunov method

被引:118
作者
Yeh, Ken [2 ]
Chen, Chen-Yuan [3 ]
Chen, Cheng-Wu [1 ]
机构
[1] Shu Te Univ, Dept Logist Management, Kaohsiung 82445, Taiwan
[2] De Lin Inst Technol, Dept Construct Sci & Technol, Taipei, Taiwan
[3] Yung Ta Inst Technol & Commerce, Dept Management Informat Syst, Pingtung, Taiwan
关键词
Fuzzy Lyapunov method; Delay-dependent; T-S fuzzy systems;
D O I
10.1016/j.amc.2008.05.104
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this study we address a fuzzy Lyapunov method for the stability analysis of time-delay fuzzy systems subject to external disturbances. A Takagi-Sugeno (T-S) fuzzy model and parallel distributed compensation (PDC) scheme are first employed to design a nonlinear fuzzy controller for the stabilization of time-delay fuzzy systems. According to the controlled system, the H-infinity criterion is derived based on the fuzzy Lyapunov method, which is defined in terms of fuzzy-blending quadratic Lyapunov functions. Based on the stability criterion, the time-delay fuzzy systems are guaranteed to be stable. The control problem can then be reformulated as a linear matrix inequality (LMI) problem. A simulation is provided to explore the feasibility of the proposed fuzzy controller design method. (C) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码:568 / 577
页数:10
相关论文
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