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Non-fragile PD state \(H_{\infty}\) control for a class of uncertain descriptor systems. (English) Zbl 1245.93045

Summary: This paper is concerned with the problem of non-fragile proportional-plus-derivative (PD) state \(H_{\infty }\) control for a class of uncertain descriptor systems. The parameter uncertainties are assumed to be time-varying norm-bounded appearing not only in the state matrix but also in the derivative matrix. A new version of bounded real lemma for descriptor systems is proposed, which guarantees a descriptor system to be normal and stable (NS) with \(\gamma \)-disturbance rejection. Based on this, we address the problem of designing non-fragile PD state \(H_{\infty }\) controllers with additive and multiplicative controller uncertainties, respectively. Sufficient conditions are presented to synthesize two classes of such non-fragile controllers in terms of LMIs. Finally, a numerical example is provided to illustrate the effectiveness of the proposed design method.

MSC:

93B36 \(H^\infty\)-control
93B52 Feedback control
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References:

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