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Practical stability with respect to model mismatch of approximate discrete-time output feedback control

Techakesari, Onvaree & Ford, Jason J. (2011) Practical stability with respect to model mismatch of approximate discrete-time output feedback control. In Australian Control Conference, 10-11 November 2011, University of Melbourne, Melbourne, VIC. (In Press)

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Abstract

This paper establishes a practical stability result for discrete-time output feedback control involving mismatch between the exact system to be stabilised and the approximating system used to design the controller. The practical stability is in the sense of an asymptotic bound on the amount of error bias introduced by the model approximation, and is established using local consistency properties of the systems. Importantly, the practical stability established here does not require the approximating system to be of the same model type as the exact system. Examples are presented to illustrate the nature of our practical stability result.

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ID Code: 44076
Item Type: Conference Paper
Keywords: Output feedback control, Approximate model, Practical stability, Discrete-time, Nonlinear
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Control Systems Robotics and Automation (090602)
Divisions: Current > Research Centres > Australian Research Centre for Aerospace Automation
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2011 [please consult the authors]
Deposited On: 19 Aug 2011 11:40
Last Modified: 20 Aug 2011 19:11

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