Variable sampling-time nonlinear model predictive control of satellites using magneto-torquers

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dc.contributor.authorCao, Yi
dc.contributor.authorChen, Wen-Hua
dc.date.accessioned2020-03-10T16:28:00Z
dc.date.available2020-03-10T16:28:00Z
dc.date.issued2014-09-30
dc.description.abstractSatellite control using magneto-torquers represents a control challenge combined with strong nonlinearity, variable dynamics and partial controllability. An automatic differentiation-based nonlinear model predictive control (NMPC) algorithm is developed in this work to tackle these issues. Based on the previously developed formulation of NMPC, a novel variable sampling-time scheme is proposed to provide a better trade-off between transient control performance and closed-loop stability. More specifically, a small sampling time is adopted to improve the response speed when the satellite is far away from the desired position, and a large sampling time is employed for the closed-loop stability when the satellite is around its equilibrium position. This scheme also significantly reduces the online computational burden associated with fixed sampling-time NMPC where a large prediction horizon has to be adopted in order to the ensure closed-loop stability. The proposed approach is demonstrated through nonlinear simulation of a specific satellite case with satisfactory results obtained.en_UK
dc.identifier.citationCao Y, Chen W-H. (2014) Variable sampling-time nonlinear model predictive control of satellites using magneto-torquers. Systems Science and Control Engineering, Volume 2, Issue 1, 2014, pp. 593-601en_UK
dc.identifier.issn2164-2583
dc.identifier.urihttps://doi.org/10.1080/21642583.2014.956841
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15260
dc.language.isoenen_UK
dc.publisherTaylor & Francisen_UK
dc.rightsAttribution 3.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/*
dc.subjectpredictive controlen_UK
dc.subjectnonlinear systemsen_UK
dc.subjectmagneto-torqueren_UK
dc.subjectautomatic differentiationen_UK
dc.subjectvariable sampling timeen_UK
dc.subjectsatelliteen_UK
dc.titleVariable sampling-time nonlinear model predictive control of satellites using magneto-torquersen_UK
dc.typeArticleen_UK

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