Induction motors with modulated terminal voltage

 

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dc.contributor.advisor Enslin, NC de V en_ZA
dc.contributor.author Schauder, Colin David en_ZA
dc.date.accessioned 2016-03-21T19:03:17Z
dc.date.available 2016-03-21T19:03:17Z
dc.date.issued 1978 en_ZA
dc.identifier.citation Schauder, C. 1978. Induction motors with modulated terminal voltage. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/18018
dc.description Bibliography: pages 292-294. en_ZA
dc.description.abstract Following the development of high speed solid state switches for the forced commutation of current in AC power circuits it has become feasible to apply forced commutation techniques to the frequency and voltage control of induction motors as variable speed drives. The availability of these methods raises questions regarding their effect on the performance of the motor and the generation of harmonic currents in the electrical supply. After the initial use of numerical simulation in the study of these systems it became apparent that this approach was not suitable for the evaluation of steady state performance factors. This thesis sets out to establish an analysis of the induction motor under these conditions which leads to the algebraic formulation of the performance of the system in the steady state. This approach can be used in any situation where the electrical supply to an induction motor is modulated by switching techniques. The analysis has been applied to chopper modulation of the supply voltage and also to a phase-stepping frequency convertor which incorporates chopper modulation. Experimental results are included to illustrate the validity of the analytical method. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Electrical Engineering en_ZA
dc.subject.other Electronic and Electrotechnical Engineering en_ZA
dc.title Induction motors with modulated terminal voltage en_ZA
dc.type Thesis / Dissertation en_ZA
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Engineering & the Built Environment en_ZA
dc.publisher.department Department of Electrical Engineering en_ZA
dc.type.qualificationlevel Doctoral en_ZA
dc.type.qualificationname PhD en_ZA
uct.type.filetype Text
uct.type.filetype Image


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