Output regulation of a flexible spacecraft with exponentially stable/unstable internal dynamics
type: Item
instance of: scholarly article
title: Output regulation of a flexible spacecraft with exponentially stable/unstable internal dynamics
zbMATH Open document ID: 0913.93049
DOI: 10.1016/S0947-3580(98)70110-4
published in: European Journal of Control
publication date: 1999-06-07T00:00:00Z
review text: In this very important paper, nonlinear regulation of a flexible spacecraft with either exponentially stable or unstable internal dynamics is analysed. The system considered is composed of a main body, where a control torque is applied, and a flexible boom which supports, through an actuated spherical joint, an antenna. The system outputs are the attitudes of the main body and of the antenna, which are required to exponentially track given desired trajectories. The internal dynamics of the system are derived and, on the basis of a case study, analysed for stability. The main result consists in a proof that there exists an instability mechanism that may or may not be active depending upon the output trajectories being tracked. Two different controllers of the static type are developed: one applicable in the case of exponentially stable internal dynamics (uses only output variables and their first derivatives), and the other applicable also in the case of unstable internal dynamics (necessitates full state feedback). Finally, the results of some numerical simulations of the controlled system are also presented.
Mathematics Subject Classification ID: 93C95
Mathematics Subject Classification ID: 74M05
Mathematics Subject Classification ID: 93C10
zbMATH DE Number: 1207261
zbMATH Keywords: output tracking
zbMATH Keywords: nonlinear regulation
zbMATH Keywords: flexible spacecraft
zbMATH Keywords: attitudes
zbMATH Keywords: unstable internal dynamics
author: Pasquale Lucibello
reviewed by: Jan Lovíšek
MaRDI profile type: Publication
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full work available at URL: s0947-3580(98)70110-4
OpenAlex ID: W1980870395
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description: scientific article; zbMATH DE number 1207261