Redesign Techniques for Nonlinear Sampled-data Systems : (Entwurfstechniken für nichtlineare Abtastsysteme)

Titelangaben

Grüne, Lars ; Pannek, Jürgen ; Worthmann, Karl ; Nešić, Dragan:
Redesign Techniques for Nonlinear Sampled-data Systems : (Entwurfstechniken für nichtlineare Abtastsysteme).
In: Automatisierungstechnik. Bd. 56 (2008) Heft 1 . - S. 38-48.
ISSN 2196-677X
DOI: https://doi.org/10.1524/auto.2008.0684

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Abstract

In the emulation approach to controller design for networked control systems the controller is first designed in continuous time ignoring the network and then implemented as a sampled-data controller. While very attractive for its simplicity, typically sufficiently small sampling periods are needed in order to ensure satisfactory performance of the resulting sampled-data closed loop. Thus, in the presence of network bandwidth constraints performance loss up to instability may occur. In this paper we present a variety of analytical and numerical techniques for the redesign of sampled-data controllers which improve the sampled-data performance of the non-redesigned controller and aim at reducing the necessary communication bandwidth.