Publication
Actuator-fault detection and isolation based on interval observers and invariant sets
Conference Article
Conference
IEEE Conference on Decision and Control (CDC)
Edition
52nd
Pages
4385-4390
Doc link
http://dx.doi.org/10.1109/CDC.2013.6760564
File
Authors
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Xu, Feng
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Puig Cayuela, Vicenç
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Ocampo Martínez, Carlos A.
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Stoican, Florin
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Olaru, Sorin
Projects associated
Abstract
This paper proposes an interval observer-based actuator fault detection and isolation (FDI) approach. An interval observer matching the healthy system mode is designed to monitor the system. When the system is in different modes, state or output interval vectors predicted by the interval observer manifest different dynamical behaviors. To guarantee reliable FDI, a collection of invariant set-based FDI conditions are established. Under these conditions, actuator faults can be accurately detected and isolated during the transition between different modes. At the end, the effectiveness of this proposed approach is presented by using a numerical example.
Categories
control system analysis, control theory, observability.
Author keywords
fault detection, actuator faults, invariant sets, interval observers
Scientific reference
F. Xu, V. Puig, C. Ocampo-Martínez, F. Stoican and S. Olaru. Actuator-fault detection and isolation based on interval observers and invariant sets, 52nd IEEE Conference on Decision and Control, 2013, Florence, pp. 4385-4390.
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