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Fuzzy H output feedback control design for singularly perturbed systems with pole placement constraints: an LMI approach

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2 Author(s)
Assawinchaichote, W. ; Dept. of Electron. & Telecommun. Eng., King Mongkut''s Univ. of Technol., Bangkok, Thailand ; Sing Kiong Nguang

This paper examines the problem of designing an H output feedback controller with pole placement constraints for singular perturbed Takagi-Sugeno (TS) fuzzy models. We propose a fuzzy H output feedback controller that not only guarantees the L2-gain of the mapping from the exogenous input noise to the regulated output to be less than some prescribed value, but also ensures closed-loop poles of each subsystem are in a prespecified linear matrix inequality (LMI) region. In order to alleviate the numerical stiffness caused by the singular perturbation ε, the design technique is formulated in terms of a family of ε-independent linear matrix inequalities. The proposed approach can be applied both standard and nonstandard singularly perturbed nonlinear systems. A numerical example is provided to illustrate the design developed in this paper.

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Fuzzy Systems, IEEE Transactions on  (Volume:14 ,  Issue: 3 )