Enhanced disturbance rejection for a predictor-based control of LTI systems with input delay
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Autores: Pedro García Gómez
, Pedro Albertos Pérez , Ricardo Sanz Díaz
- Localización: Automatica: A journal of IFAC the International Federation of Automatic Control, ISSN 0005-1098, Vol. 72, 2016, págs. 205-208
- Idioma: inglés
- DOI: 10.1016/j.automatica.2016.05.019
- Enlaces
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Resumen
Abstract In this paper, a new predictor-based control strategy for LTI systems with input delay and unknown disturbances is proposed. The disturbing signal and its derivatives up to the r -th order are estimated by means of an observer, and then used to construct a prediction of the disturbance. Such prediction allows defining a new predictive scheme that takes into account its effect. Also, a suitable transformation of the control input is presented and a performance analysis is carried out to show that, for a given controller, the proposed solution leads to better disturbance attenuation than previous approaches in the literature for smooth enough perturbations.
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