Identification of discrete-time output error model for industrial processes with time delay subject to load disturbance

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dc.contributor.authorDong, Shijian
dc.contributor.authorLiu, Tao
dc.contributor.authorWang, Wei
dc.contributor.authorBao, Jie
dc.contributor.authorCao, Yi
dc.date.accessioned2017-01-16T11:25:34Z
dc.date.available2017-01-16T11:25:34Z
dc.date.issued2016-12-22
dc.description.abstractIn this paper, a bias-eliminated output error model identification method is proposed for industrial processes with time delay subject to unknown load disturbance with deterministic dynamics. By viewing the output response arising from such load disturbance as a dynamic parameter for estimation, a recursive least-squares identification algorithm is developed in the discrete-time domain to estimate the linear model parameters together with the load disturbance response, while the integer delay parameter is derived by using a one-dimensional searching approach to minimize the output fitting error. An auxiliary model is constructed to realize consistent estimation of the model parameters against stochastic noise. Moreover, dual adaptive forgetting factors are introduced with tuning guidelines to improve the convergence rates of estimating the model parameters and the load disturbance response, respectively. The convergence of model parameter estimation is analyzed with a rigorous proof. Illustrative examples for open- and closed-loop identification are shown to demonstrate the effectiveness and merit of the proposed identification method.en_UK
dc.identifier.citationDong S, Liu T, Wang W, et al., Identification of discrete-time output error model for industrial processes with time delay subject to load disturbance. Journal of Process Control, Volume 50, February 2017, Pages 40–55en_UK
dc.identifier.issn0959-1524
dc.identifier.urihttp://dx.doi.org/10.1016/j.jprocont.2016.11.007
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/11278
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectOutput error modelen_UK
dc.subjectTime delayen_UK
dc.subjectLoad disturbanceen_UK
dc.subjectConvergenceen_UK
dc.subjectForgetting factoren_UK
dc.titleIdentification of discrete-time output error model for industrial processes with time delay subject to load disturbanceen_UK
dc.typeArticleen_UK

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