Continuous-time controller redesign for digital implementation : A trajectory based approach

Titelangaben

Grüne, Lars ; Worthmann, Karl ; Nešić, Dragan:
Continuous-time controller redesign for digital implementation : A trajectory based approach.
In: Automatica. Bd. 44 (2008) Heft 1 . - S. 225-232.
ISSN 1873-2836
DOI: https://doi.org/10.1016/j.automatica.2007.05.003

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Abstract

Given a continuous time nonlinear closed loop system, we investigate sampled-data feedback laws for which the trajectories of the sampled-data closed loop system converge to the continuous time trajectories with a prescribed rate of convergence as the length of the sampling interval tends to zero. We derive necessary and sufficient conditions for the existence of such sampled-data feedback laws and - in case of existence - provide explicit redesign formulas and algorithms for these controllers.