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Novel stability and stabilization criteria for Takagi–Sugeno fuzzy time-delay systems |
Gong Da-Wei(宫大为)†, Zhang Hua-Guang(张化光), and Wang Zhan-Shan(王占山) |
College of Information Science and Engineering, Northeastern University, Shenyang 110819, China |
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Abstract We study the problems of stability and stabilization for Takagi-Sugeno (T-S) fuzzy time-delay systems. First, by constructing a less-redundant Lyapunov-Krasovskii function and introducing a useful inequality, an innovative stability criterion is obtained, which gives a significant improvement on the performance. Compared with the exiting references, our result can use fewer unknown variables and get better results. Furthermore, based on the derived stability criteria, a new stabilization condition is developed, in which the controller gain and the maximum allowable delay bound can be obtained simultaneously. The conditions are all derived in the form of linear matrix inequality, which are easy to verify. Finally, numerical examples are given to show the effectiveness of the proposed methods.
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Received: 28 May 2011
Revised: 02 November 2011
Accepted manuscript online:
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PACS:
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02.30.Yy
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(Control theory)
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02.60.Cb
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(Numerical simulation; solution of equations)
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87.16.A-
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(Theory, modeling, and simulations)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 50977008, 61034005, and 61104021), the National High Technology Research and Development Program of China (Grant No. 2009AA04Z127), and the National Basic Research Program of China (Grant No. 2009CB320601). |
Corresponding Authors:
Gong Da-Wei,pzhzhx@126.com
E-mail: pzhzhx@126.com
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Cite this article:
Gong Da-Wei(宫大为), Zhang Hua-Guang(张化光), and Wang Zhan-Shan(王占山) Novel stability and stabilization criteria for Takagi–Sugeno fuzzy time-delay systems 2012 Chin. Phys. B 21 030204
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