Development of an Autotuner for Plants with Stochastic Disturbances

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dc.contributor.advisorFoley, Michael
dc.contributor.authorBrebnor, Dave
dc.contributor.committeememberClarke, Matthew
dc.contributor.committeememberSvrcek, William
dc.contributor.committeememberWestwick, David
dc.contributor.committeememberKwok, Ezra
dc.date2018-02-16
dc.date.accessioned2018-01-04T23:54:50Z
dc.date.available2018-01-04T23:54:50Z
dc.date.issued2017-12-20
dc.description.abstractThe most universally exercised model which amply describes the transient behaviour of a wide range of chemical processes is the first-order-plus-deadtime model. An identification experiment must be conducted to generate the data required to fit an accurate first-order-plus deadtime model. Relay feedback procedures have superseded the conventional step response identification tests for the purpose of tuning proportional-integral-derivative controllers. However, these techniques are known to perform poorly in the presence of process disturbances. Developing an autotuner that performs well in the presence of stationary stochastic disturbances is the chief objective of this dissertation. This is accomplished by the inclusion of two separate first-order filters in the relay feedback loop. A few guidelines are provided for the selection of the filter time constants. After the identification procedure yields the process parameters, a model-based tuning rule can be employed for controller tuning. Simulations of a continuous stirred tank heater and experiments conducted on a pilot-plant stirred tank heater illustrate the feasibility of the proposed autotuner.en_US
dc.identifier.citationBrebnor, D. (2017). Development of an Autotuner for Plants with Stochastic Disturbances (Doctoral thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/5225
dc.identifier.urihttp://hdl.handle.net/1880/106229
dc.language.isoenen_US
dc.publisher.facultySchulich School of Engineeringen_US
dc.publisher.institutionUniversity of Calgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.subject.classificationEngineering--Chemicalen_US
dc.titleDevelopment of an Autotuner for Plants with Stochastic Disturbancesen_US
dc.typedoctoral thesisen_US
thesis.degree.disciplineEngineering – Chemical & Petroleumen_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameDoctor of Philosophy (PhD)en_US
ucalgary.item.requestcopytrue
ucalgary.thesis.checklistI confirm that I have submitted all of the required forms to Faculty of Graduate Studies. (See <a href="http://grad.ucalgary.ca/current/thesis/ethesis">http://grad.ucalgary.ca/current/thesis/ethesis</a> for more details)en_US
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