Investigation of an optimalising controller

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dc.contributor.advisorMcLaren, S Gen_ZA
dc.contributor.authorLuxat, J Cen_ZA
dc.date.accessioned2015-09-14T04:16:38Z
dc.date.available2015-09-14T04:16:38Z
dc.date.issued1969en_ZA
dc.descriptionIncludes bibliography.en_ZA
dc.description.abstractThis dissertation presents a comprehensive investigation of an optimalising controller and its behaviour when controlling a simulated plant. In addition certain theoretical aspects of optimalising control are presented. Design criteria and details of the circuitry of the experimental controller, built as part of this research project, are given. The necessity to deactivate the controller, for a certain period during each cycle of operation, is shown to be a result of measurement delay in the optimalising loop, and an expression for evaluating the deactive time is derived. Utilising describing function techniques, the steady-state response of the control system is predicted and the results are shown to be in good agreement with the experimental results. The adaptive response of the system is investigated and it is shown that the bandwidth of the adaptive response maybe predicted from steady-state response characteristics. The limitations imposed upon both the steady-state and adaptive response, by measurement delay, are shown . With respect to the theory of optimalising control, a framework for stability analysis is developed and stability criteria for the basic optimalising control loop are derived.en_ZA
dc.identifier.apacitationLuxat, J. C. (1969). <i>Investigation of an optimalising controller</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/13820en_ZA
dc.identifier.chicagocitationLuxat, J C. <i>"Investigation of an optimalising controller."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 1969. http://hdl.handle.net/11427/13820en_ZA
dc.identifier.citationLuxat, J. 1969. Investigation of an optimalising controller. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Luxat, J C AB - This dissertation presents a comprehensive investigation of an optimalising controller and its behaviour when controlling a simulated plant. In addition certain theoretical aspects of optimalising control are presented. Design criteria and details of the circuitry of the experimental controller, built as part of this research project, are given. The necessity to deactivate the controller, for a certain period during each cycle of operation, is shown to be a result of measurement delay in the optimalising loop, and an expression for evaluating the deactive time is derived. Utilising describing function techniques, the steady-state response of the control system is predicted and the results are shown to be in good agreement with the experimental results. The adaptive response of the system is investigated and it is shown that the bandwidth of the adaptive response maybe predicted from steady-state response characteristics. The limitations imposed upon both the steady-state and adaptive response, by measurement delay, are shown . With respect to the theory of optimalising control, a framework for stability analysis is developed and stability criteria for the basic optimalising control loop are derived. DA - 1969 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1969 T1 - Investigation of an optimalising controller TI - Investigation of an optimalising controller UR - http://hdl.handle.net/11427/13820 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/13820
dc.identifier.vancouvercitationLuxat JC. Investigation of an optimalising controller. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 1969 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/13820en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Electrical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherElectrical Engineeringen_ZA
dc.titleInvestigation of an optimalising controlleren_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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