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Disturbance decoupled fault reconstruction using cascaded sliding mode observers
Monash University, Malaysia.
Monash University, Malaysia.
University of Melbourne, Australia.
2012 (English)In: Automatica, ISSN 0005-1098, E-ISSN 1873-2836, Vol. 48, no 5, p. 794-799Article in journal (Refereed) Published
Abstract [en]

This paper presents a disturbance decoupled fault reconstruction (DDFR) scheme using cascaded sliding mode observers (SMOs). The processed signals from a SMO are found to be the output of a fictitious system which treats the faults and disturbances as inputs; the ?outputs? are then fed into the next SMO. This process is repeated until the attainment of a fictitious system which satisfies the conditions that guarantee DDFR. It is found that this scheme is less restrictive and enables DDFR for a wider class of systems compared to previous work when only one or two SMOs were used. This paper also presents a systematic routine to check for the feasibility of the scheme and to calculate the required number of SMOs from the outset and also to design the DDFR scheme. A design example verifies its effectiveness.

Place, publisher, year, edition, pages
Elsevier , 2012. Vol. 48, no 5, p. 794-799
Keywords [en]
Fault Isolation, Diagnosis
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-138864DOI: 10.1016/j.automatica.2012.02.005ISI: 000303906800009OAI: oai:DiVA.org:liu-138864DiVA, id: diva2:1115289
Available from: 2017-06-26 Created: 2017-06-26 Last updated: 2017-07-11

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  • asciidoc
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