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Observer-based sensor fault detectability: about robust positive invariance approach and residual sensitivity

Author
Rahman, A.; Pourasgharlafmejani, M.; Puig, V.; Olaru, S.; Ocampo-Martinez, C.A.; Reppa, V.
Type of activity
Journal article
Journal
IFAC-PapersOnLine
Date of publication
2017-07-01
Volume
50
Number
1
First page
5041
Last page
5046
DOI
https://doi.org/10.1016/j.ifacol.2017.08.926 Open in new window
Repository
http://hdl.handle.net/2117/119133 Open in new window
URL
http://www.sciencedirect.com/science/article/pii/S2405896317313927?via%3Dihub Open in new window
Abstract
This paper considers detectability of deviation of sensors from their nominal behavior for a class of linear time-invariant discrete-time systems in the presence of bounded additive uncertainties. Detectable sensor faults using interval observers are analyzed considering two distinct approaches: invariant-sets and classical fault-sensitivity method. It can be inferred from this analysis that both approaches derive distinct formulations for minimum detectable fault magnitude, though qualitatively...
Citation
Rahman, A., Pourasgharlafmejani, M., Puig, V., Olaru, S., Ocampo-Martinez, C.A., Reppa, V. Observer-based sensor fault detectability: about robust positive invariance approach and residual sensitivity. "IFAC-PapersOnLine", 1 Juliol 2017, vol. 50, núm. 1, p. 5041-5046.
Keywords
Dynamic Models, Fault Detection, Interval Observers, Positive Invariance, Sensor Faults
Group of research
CS2AC-UPC - Supervision, Safety and Automatic Control
SAC - Advanced Control Systems

Participants