Simultaneous fault and input time delay estimation for an actuator system: theory and flight data validation

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dc.contributor.authorChen, Lejun
dc.contributor.authorEdwards, Christopher
dc.contributor.authorAlwi, Halim
dc.contributor.authorSato, Masayuki
dc.date.accessioned2021-06-22T13:15:33Z
dc.date.available2021-06-22T13:15:33Z
dc.date.issued2021-06-18
dc.description.abstractThis paper proposes a first order sliding mode observer for the purpose of simultaneously estimating the unknown input time delay and reconstructing the loss of effectiveness in a model of an actuator. The adaptive algorithm is driven by the ‘equivalent output error injection’ signal associated with the sliding motion. Sufficient conditions are given to ensure finite time convergence of the state estimation error system, ensuring both the time delay estimation error and the estimation error associated with the actuator fault converge to a small region around zero. The efficacy of the approach has been evaluated via both a numerical simulation and flight data validation.en_UK
dc.identifier.citationChen L, Edwards C, Alwi H, Sato M. (2021) Simultaneous fault and input time delay estimation for an actuator system: theory and flight data validation. IEEE Control Systems Letters, Volume 6, June 2021, pp. 1172-1177en_UK
dc.identifier.issn2475-1456
dc.identifier.urihttps://doi.org/10.1109/LCSYS.2021.3090654
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/16804
dc.language.isoenen_UK
dc.publisherIEEEen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectFault detectionen_UK
dc.subjectDelay systemsen_UK
dc.subjectVariable-structure/sliding-mode controlen_UK
dc.titleSimultaneous fault and input time delay estimation for an actuator system: theory and flight data validationen_UK
dc.typeArticleen_UK

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