Dynamic output feedback control for affine fuzzy systems

Huimin Wang and Guang-Hong Yang

International Journal of Systems Science, 2013, vol. 44, issue 6, 1102-1111

Abstract: This article investigates the problem of designing H∞ dynamic output feedback controllers for nonlinear systems, which are described by affine fuzzy models. The system outputs have been chosen as premise variables, which can guarantee that the plant and the controller always switch to the same region. By using a piecewise Lyapunov function and adding slack matrix variables, a piecewise-affine dynamic output feedback controller design method is obtained in the formulation of linear matrix inequalities (LMIs), which can be efficiently solved numerically. In contrast to the existing work, the proposed approach needs less LMI constraints and leads to less conservatism. Finally, numerical examples illustrate the effectiveness of the new result.

Date: 2013
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DOI: 10.1080/00207721.2011.652231

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