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Output feedback fuzzy control design of nonlinear MIMO system: An LMI approach

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3 Author(s)
Abdel Hadi, A. ; Ain Shams Univ., Cairo ; Hassan, M.I. ; Elshafei, A.L.

This paper presents an output feedback controller design method for continuous time Takagi-Sugeno (T-S) fuzzy systems, using a fuzzy Lyapunov function. The proposed output feedback fuzzy controller is made up of a fuzzy state feedback controller based on a fuzzy Lyapunov functions and fuzzy observer based on a common quadratic Lyapunov function. Each of the observer and controller is designed separately in a two-step procedure. It is shown that the state feedback control laws and observer gains can be obtained by solving a set of Linear Matrix Inequalities (LMI) that is numerically tractable with commercially available software. A nonlinear MIMO simulation example is given to demonstrate the advantage of the proposed method.

Published in:

Computer Engineering & Systems, 2007. ICCES '07. International Conference on

Date of Conference:

27-29 Nov. 2007