Publication
Fault detection and isolation based on the combination of a bank of interval observers and invariant sets
Conference Article
Conference
Mediterranean Conference on Control and Automation (MED)
Edition
21st
Pages
807-813
Doc link
http://dx.doi.org/10.1109/MED.2013.6608816
File
Authors
-
Xu, Feng
-
Stoican, Florin
-
Puig Cayuela, Vicenç
-
Ocampo Martínez, Carlos A.
-
Olaru, Sorin
Projects associated
Abstract
In this paper, a fault detection and isolation (FDI) approach using a bank of interval observers is developed. From the methodological point of view, a bank of interval observers is designed from different dynamical models of the system under healthy and faulty situations. Each dedicated interval observer matches one possible situation while all designed interval observers monitor the system simultaneously and independently. For the sake of guaranteed FDI, a set of FDI sufficient conditions are established based on invariant set notions. These conditions ensure that the faults can be accurately isolated after sufficiently long monitoring time. Finally, simulation results over a subsystem of a wind turbine are used to present the effectiveness of the proposed approach.
Categories
control system analysis, control theory, observability.
Author keywords
Interval observers, invariant sets, fault detection, fault isolation, bank of observers
Scientific reference
F. Xu, F. Stoican, V. Puig, C. Ocampo-Martínez and S. Olaru. Fault detection and isolation based on the combination of a bank of interval observers and invariant sets, 21st Mediterranean Conference on Control and Automation, 2013, Crete, Greece, pp. 807-813.
Follow us!