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Tuning of observer-based controllers

Cumer, Christelle and Delmond, Fabien and Alazard, Daniel and Bérard, Caroline Tuning of observer-based controllers. (2004) Journal of Guidance Control and Dynamics, vol. 27 (n° 4). pp. 607-615. ISSN 0731-5090

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Abstract

A particular postsynthesis problem is examined. Assume a first complex controller running on a given system. It turns out that a closed-loop mode is not sufficiently damped. Is it easy to know which adjustable combinations of controller parameters are the most relevant to master this problem? A Bayesian identification procedure is proposed to analyze the relevance of such a given parameter combination with respect to a given modal specification. One application, for which such a controller tuning is very interesting, is the adjustment of flight control laws during flight tests. In this practical context, the observer-based realization of the controller is used to derive an architecture suitable for its implementation, that is, an architecture in which physical tuning parameters can be easily highlighted. The results presented concern the lateral flight control law of a highly flexible aircraft that has been synthesized by a modern robust control approach.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA
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Deposited By: Daniel Alazard
Deposited On:03 May 2012 07:46

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