Hybrid nonlinear model predictive control of a cooling water network

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dc.contributor.author Viljoen, Johannes Henning
dc.contributor.author Muller, Cornelius Jacobus
dc.contributor.author Craig, Ian Keith
dc.date.accessioned 2020-05-27T14:37:17Z
dc.date.issued 2020-04
dc.description.abstract A 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.department Electrical, Electronic and Computer Engineering en_ZA
dc.description.embargo 2021-04-01
dc.description.librarian hj2020 en_ZA
dc.description.sponsorship The National Research Foundation of South Africa en_ZA
dc.description.uri http://www.elsevier.com/locate/conengprac en_ZA
dc.identifier.citation Viljoen, 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.issn 0967-0661 (print)
dc.identifier.issn 1873-6939 (online)
dc.identifier.other 10.1016/j.conengprac.2020.104319
dc.identifier.uri http://hdl.handle.net/2263/74757
dc.language.iso en en_ZA
dc.publisher Elsevier en_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.subject Hybrid nonlinear model predictive control (HNMPC) en_ZA
dc.subject Nonlinear model predictive control (NMPC) en_ZA
dc.subject Cooling tower en_ZA
dc.subject Cooling water network en_ZA
dc.subject Optimisation en_ZA
dc.subject Gradient descent en_ZA
dc.subject Hybrid systems en_ZA
dc.subject Electricity consumption minimisation en_ZA
dc.title Hybrid nonlinear model predictive control of a cooling water network en_ZA
dc.type Postprint Article en_ZA


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