Robustness analysis of discrete predictor-based controllers for input-delay systems

In this article, robustness to model uncertainties are analysed in the context of discrete predictor-based state-feedback controllers for discrete-time input-delay systems with time-varying delay, in an LMI framework. The goal is comparing robustness of predictor-based strategies with respect to other (sub)optimal state feedback ones. A numerical example illustrates that improvements in tolerance to modelling errors can be achieved by using the predictor framework.The authors are grateful for grant nos. DPI2008-06737-C02-01, DPI2008-06731-C02-01, DPI2011-27845-C02-01 and PROMETEO/2008/088 from the Spanish and Valencian governments.González Sorribes, A.; Sala, A.; García Gil, PJ.; Albertos Pérez, P. (2013). Robustness analysis of discrete predictor-based controllers for input-delay systems. International Journal of Systems Science. 44(2):232-239. https://doi.org/10.1080/00207721.2011.600469S232239442Boukas, E.-K. (2006). 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Investigation of the robust stability of system with delay / Sistemų, kurių savybė vėlinti, tyrimas patikimam stabilumui nustatyti

The paper is devoted to investigation of the robust stability of system with delay. The influence of process parameters on the stability of the whole system is tested and impact to the system parameters using the Smith predictor for robust systems is defined. Santrauka  Pristatomas sistemų, kurioms būdingas vėlinimas, tyrimas patikimam stabilumui nustatyti. Ištirta proceso parametrų įtaka visos sistemos stabilumui ir įvertinta Smito prognozės taikymo nauda numatant patikimas sistemas. Raktiniai žodžiai: sistema, vėlinimas, Smito prognozės