In this paper robust stability and performance conditions for the classical unity-feedback control system and for a more general feedback configuration are proposed. Uncertainty is represented in the linear fractional form, where perturbations are assumed to be norm-bounded, stable and unstructured. Suitable Hinf control problems are derived for satisfying both the proposed sufficient conditions. In addition, it is shown that the first condition puts in a unified framework some conditions existing in the literature and referring to specific kinds of perturbations, such as the additive and the multiplicative ones. Lastly, a property of the family of perturbed systems whose robust stabilization is guaranteed by the first condition is derived.
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Titolo: | Sufficient conditions for robust stability and performance |
Autori: | |
Anno: | 2002 |
Citazione: | Caminiti, L., GRASSELLI O., M., & Paoletti, S. (2002). Sufficient conditions for robust stability and performance. In Proc. of 10th Mediterranean Conference on Control and Automation. |
Abstract: | In this paper robust stability and performance conditions for the classical unity-feedback control system and for a more general feedback configuration are proposed. Uncertainty is represented in the linear fractional form, where perturbations are assumed to be norm-bounded, stable and unstructured. Suitable Hinf control problems are derived for satisfying both the proposed sufficient conditions. In addition, it is shown that the first condition puts in a unified framework some conditions existing in the literature and referring to specific kinds of perturbations, such as the additive and the multiplicative ones. Lastly, a property of the family of perturbed systems whose robust stabilization is guaranteed by the first condition is derived. |
Handle: | http://hdl.handle.net/11365/45646 |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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http://hdl.handle.net/11365/45646