H/sub 2/ control design for fuzzy dynamic systems by LMI

This paper addresses H/sub 2/ control of complex nonlinear systems which can be represented by a fuzzy dynamic model. Based on a Lyapunov function and a piecewise Lyapunov function respectively, two kinds of new control design methods are proposed. It is shown that the closed-loop fuzzy control system is asymptotically stable with a white-noise attenuation. The H/sub 2/ controller can be obtained by the numerical technique of linear matrix inequalities (LMI).

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