- Title
- Sensor fault-tolerant control of a magnetic levitation system
- Creator
- Yetendje, Alain; Seron, Maria M.; De Dona, Jose A.; Martinez, John J.
- 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
- Publisher
- John Wiley & Sons
- Resource Type
- journal article
- Date
- 2010
- 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.
- Subject
- magnetic suspension; fault tolerant control; switching control; bounded disturbances; invariant sets
- Identifier
- uon:9440
- Identifier
- http://hdl.handle.net/1959.13/921935
- Identifier
- ISSN:1049-8923
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