A single three phase variable speed drive with unity power factor

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dc.contributor.advisorMalengret, Michelen_ZA
dc.contributor.authorDouglas, Hughen_ZA
dc.date.accessioned2014-07-31T11:01:57Z
dc.date.available2014-07-31T11:01:57Z
dc.date.issued2000en_ZA
dc.descriptionBibliography: leaf 86.
dc.description.abstractThe new proposed topology for a single three-phase variable speed drive was developed after considering the advantages and disadvantages of previous topologies. The new topology employs only six switches that form and active front-end rectifier and a four-switch inverter. The active front-end rectifier is the first leg of the three-phase bridge. It not only rectifies the voltage source but it also regulates one of the phases for the motor. The four-switch inverter produces the variable frequency. Excessive distortion currents drawn by a converter can cause voltage distortions. For this reason the converter should draw a high quality sinusoidal current from the supply. Excessive currents drawn from the supply are also the result of poor power factors. The converter should therefore operate at close to unit power factor. N Mohan, T Underland, W.P Robins [3].en_ZA
dc.identifier.apacitationDouglas, H. (2000). <i>A single three phase variable speed drive with unity power factor</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/5274en_ZA
dc.identifier.chicagocitationDouglas, Hugh. <i>"A single three phase variable speed drive with unity power factor."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 2000. http://hdl.handle.net/11427/5274en_ZA
dc.identifier.citationDouglas, H. 2000. A single three phase variable speed drive with unity power factor. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Douglas, Hugh AB - The new proposed topology for a single three-phase variable speed drive was developed after considering the advantages and disadvantages of previous topologies. The new topology employs only six switches that form and active front-end rectifier and a four-switch inverter. The active front-end rectifier is the first leg of the three-phase bridge. It not only rectifies the voltage source but it also regulates one of the phases for the motor. The four-switch inverter produces the variable frequency. Excessive distortion currents drawn by a converter can cause voltage distortions. For this reason the converter should draw a high quality sinusoidal current from the supply. Excessive currents drawn from the supply are also the result of poor power factors. The converter should therefore operate at close to unit power factor. N Mohan, T Underland, W.P Robins [3]. DA - 2000 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2000 T1 - A single three phase variable speed drive with unity power factor TI - A single three phase variable speed drive with unity power factor UR - http://hdl.handle.net/11427/5274 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/5274
dc.identifier.vancouvercitationDouglas H. A single three phase variable speed drive with unity power factor. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 2000 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/5274en_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.titleA single three phase variable speed drive with unity power factoren_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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