Hybrid nonlinear model predictive control of a cooling water network

dc.contributor.authorViljoen, Johannes Henning
dc.contributor.authorMuller, Cornelius Jacobus
dc.contributor.authorCraig, Ian Keith
dc.contributor.emailian.craig@up.ac.zaen_ZA
dc.date.accessioned2020-05-27T14:37:17Z
dc.date.issued2020-04
dc.description.abstractA Hybrid Nonlinear Model Predictive Control (HNMPC) strategy is developed for temperature control and power consumption minimisation of a cooling water network. The HNMPC uses a gradient descent optimisation algorithm for the continuous manipulated variables, and an enumerated tree traversal algorithm to control and optimise the Boolean manipulated variables. The HNMPC is subjected to disturbances similar to those experienced on a real plant, and its performance compared to a continuous Nonlinear Model Predictive Control (NMPC) and two base case scenarios. Power consumption is minimised, and process temperature disturbances are successfully rejected. Monetary benefits of the HNMPC control strategy are estimated.en_ZA
dc.description.departmentElectrical, Electronic and Computer Engineeringen_ZA
dc.description.embargo2021-04-01
dc.description.librarianhj2020en_ZA
dc.description.sponsorshipThe National Research Foundation of South Africaen_ZA
dc.description.urihttp://www.elsevier.com/locate/conengpracen_ZA
dc.identifier.citationViljoen, J.H., Muller, C.J. & Craig, I.K. 2020, 'Hybrid nonlinear model predictive control of a cooling water network', Control Engineering Practice, vol. 97, art. 104319, pp. 1-18.en_ZA
dc.identifier.issn0967-0661 (print)
dc.identifier.issn1873-6939 (online)
dc.identifier.other10.1016/j.conengprac.2020.104319
dc.identifier.urihttp://hdl.handle.net/2263/74757
dc.language.isoenen_ZA
dc.publisherElsevieren_ZA
dc.rights© 2020 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Control Engineering Practice. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Control Engineering Practice, vol. 97, art. 104319, pp. 1-18, 2020. doi : 10.1016/j.conengprac.2020.104319.en_ZA
dc.subjectHybrid nonlinear model predictive control (HNMPC)en_ZA
dc.subjectNonlinear model predictive control (NMPC)en_ZA
dc.subjectCooling toweren_ZA
dc.subjectCooling water networken_ZA
dc.subjectOptimisationen_ZA
dc.subjectGradient descenten_ZA
dc.subjectHybrid systemsen_ZA
dc.subjectElectricity consumption minimisationen_ZA
dc.titleHybrid nonlinear model predictive control of a cooling water networken_ZA
dc.typePostprint Articleen_ZA

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