Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/921935

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Title
Sensor fault-tolerant control of a magnetic levitation system
Author/Creator
Yetendje, Alain;  Seron, Maria M.;  De Dona, Jose A.;  Martinez, John J.
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Electrical Engineering and Computer Science
Description
In this paper, a fault-tolerant switching control strategy is implemented on a magnetic levitation (MAGLEV) system. Two sensors are embedded in the MAGLEV system and their measurements used by two independent estimators. Each sensors–estimator combination, together with a feedback controller can levitate and stabilize a 1-in steel ball at a desired position in the air. The paper focuses on the design and testing of a switching scheme which, at each instant of time, selects the sensors–estimator combination that provides the best closed loop performance based on a chosen criterion. Theoretical results on the system linearization around an operating point ensure local closed-loop stability and good performance under the occurrence of an abrupt fault in one of the plant sensors. Experimental results are provided which confirm the fault-tolerant capabilities of the strategy.
Relation
International Journal of Robust and Nonlinear Control Vol. 20, Issue 18, p. 2108-2121
Publisher Link
http://dx.doi.org/10.1002/rnc.1572
Date
2010
Publisher
John Wiley & Sons
Keyword(s)
magnetic suspension;  fault tolerant control;  switching control;  bounded disturbances;  invariant sets
Resource Type
journal article
Identifier
http://hdl.handle.net/1959.13/921935
Identifier
ISSN:1049-8923
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Subject
"International Journal of Robust and Nonlinear Control"
 
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