Decentralized observer-based tracker for analog systems with saturating actuator and state constraints

A weighted switching strategy and an inner-loop compensator are presented in this paper to design an observer-based tracker for a decentralized closed-loop cascaded system with a saturating actuator and state constraints. The LQR design methodology for the observer-based tracker is proposed to simpl...

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Bibliographic Details
Published in:Computers & mathematics with applications (1987) 2008, Vol.55 (1), p.1-22
Main Authors: Tsai, J.S.H., Lin, J.H., Shieh, L.S., Liu, C.R., Guo, S.M.
Format: Article
Language:English
Subjects:
Actuators
Decentralized
Decentralized control
Design engineering
Digital redesign
Evolutionary programming
Input and state saturations
Mathematical analysis
Methodology
Observer-based tracker
Redesign
Strategy
Switching
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Summary:A weighted switching strategy and an inner-loop compensator are presented in this paper to design an observer-based tracker for a decentralized closed-loop cascaded system with a saturating actuator and state constraints. The LQR design methodology for the observer-based tracker is proposed to simplify the complexity of the decentralized control. The realizable sample-data controller with a low-gain property and a high design performance is realized through the digital redesign method. For obtaining a better design performance, evolutionary programming is then presented to tune the parameters of the tracker. Some examples are also presented to demonstrate the effectiveness of the proposed methodology.
ISSN:0898-1221
1873-7668
DOI:10.1016/j.camwa.2006.04.036