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Robust inversion based fault estimation for discrete-time LPV systems

Författare och institution:
Balazs Kulcsar (Institutionen för signaler och system, Reglerteknik); Michel Verhaegen (-)
Publicerad i:
IEEE Transactions on Automatic Control, 57 ( 6 ) s. 1581-1586
ISSN:
0018-9286
Publikationstyp:
Artikel, refereegranskad vetenskaplig
Publiceringsår:
2012
Språk:
engelska
Fulltextlänk:
Fulltextlänk (lokalt arkiv):
Sammanfattning (abstract):
The article presents a state-space based Fault Diagnosis (FD) method for discrete-time, affine Linear Parameter Varying (LPV) systems. The goal of the technical note is to develop a robust and dynamic inversion based technique for systems with parameter varying representations when an additive, exogenous disturbance signal perturbs the system. After applying geometric concepts for explicit fault inversion, a robust strategy is proposed to attenuate the effect of the unknown disturbance input signal on the fault estimation error. The proposed robust observer is derived as a solution of off-line Linear Matrix Inequality (LMI) conditions. The technical note demonstrates the viability of the novel methodology through a numerical example.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
TEKNIK OCH TEKNOLOGIER ->
Elektroteknik och elektronik ->
Reglerteknik
Nyckelord:
Discrete-time linear parameter varying (LPV) systems, dynamic inversion, fault detection and isolation, fault diagnosis (FD), robust observers
Chalmers styrkeområden:
Transport
Postens nummer:
159060
Posten skapad:
2012-06-15 16:22
Posten ändrad:
2013-05-31 14:00

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