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Mathematical Problems in Engineering
Volume 2013, Article ID 197845, 14 pages
Research Article

Robust Fuzzy Output Feedback Control for a Class of Nonlinear Uncertain Systems with Mixed Time Delays

Electronic and Information Engineering College, Henan University of Science and Technology, Luoyang 471023, China

Received 25 June 2013; Accepted 18 August 2013

Academic Editor: Baoyong Zhang

Copyright © 2013 Xiaona Song and Shanzhong Liu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper studies the problem of delay-dependent robust output feedback control for a class of uncertain fuzzy neutral systems with both discrete and distributed delays. The system is described by a state-space Takagi-Sugeno fuzzy model with distributed delays and norm-bounded parameter uncertainties. The purpose is to design a fuzzy dynamic output feedback controller which ensures the robust asymptotic stability of the closed-loop fuzzy neutral system and satisfies an norm bound constraint for all admissible uncertainties. In terms of linear matrix inequalities, sufficient conditions for the solvability of this problem are presented. Finally, a numerical example is included to demonstrate the effectiveness of the proposed method.