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Analysis and design of a voltage regulator based on an AC-to-AC converter
Thesis (MScEng)--University of Stellenbosch, 2003.
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| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2012
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| _version_ | 1867613887514279936 |
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| access_status_str | Open Access |
| author | Van Schalkwyk, Christine |
| author2 | Mouton, H. du T. |
| author_browse | Mouton, H. du T. Van Schalkwyk, Christine |
| author_facet | Mouton, H. du T. Van Schalkwyk, Christine |
| author_sort | Van Schalkwyk, Christine |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MScEng)--University of Stellenbosch, 2003. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/53254 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:43:16.997Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/53254 Analysis and design of a voltage regulator based on an AC-to-AC converter Van Schalkwyk, Christine Mouton, H. du T. Beukes, H. J. Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Electric current converters Voltage regulators Dissertations -- Electrical engineering Theses -- Electrical engineering Thesis (MScEng)--University of Stellenbosch, 2003. ENGLISH ABSTRACT: This thesis discusses the analysis and design of a voltage regulator based on an AC-to-AC converter. A background study was performed on the best topology for the purpose. The chosen topology was analysed and the converter was designed in detail. A voltage sign-detector and an over-current detector were designed and built. They were used for control and protection. Three methods of control were investigated. The first was a slow but reliable method of computing the RMS value of the input voltage and then using that value and the RMS value of the desired output voltage to compute the duty ratio of the converter. The second method was fast and is an open-loop control method, where the measured input voltage and a reference value of the desired output voltage are used to compute the duty ratio. The third method is a closed-loop control method in which the input voltage, output voltage and the same reference values used in the second method are used to compute the duty ratio. All of these methods were implemented and tested. AFRIKAANSE OPSOMMING: Hierdie tesis bespreek die analise en die ontwerp van 'n spannings reguleerder wat gebaseer is op 'n WS-na-WS omsetter. 'n Ondersoek was ingestelom die beste topologie te vind vir die doel. Die topologie wat gekies is, is toe geanaliseer en die omsetter is in detailontwerp. 'n Spannings-tekendetektor baan as ook 'n oorstroombeskermings baan was ontwerp en is gebou. Hierdie bane word gebruik vir die beheer en die beveiliging van die stelsel. Daar is drie metodes van beheer wat ondersoek is. Die eerste metode is stadig, maar betroubaar. Die metode bereken die WGK waarde van die intree spanning en gebruik dan die waarde en die WGK van die gewenste uittree spanning om die diens siklus van die omsetter uit te werk. Die tweede metode van beheer is vinnig en is 'n oop-lus metode van beheer. Hierdie metode maak gebruik van die gemete intreespanning en 'n verwysing van die gewensde uittree spanning om die dienssiklus uit te werk. Die derde metode is 'n geslote-lus beheer wat van die gamete intreespanning, die gemete uittreespanning en die verwysing soos die in die tweede beheermetode gebruik maak on die diens siklus uit te werk. AI die metodes was geimplementeer en getoets. 2012-08-27T11:35:23Z 2012-08-27T11:35:23Z 2003-04 Thesis http://hdl.handle.net/10019.1/53254 en_ZA Stellenbosch University 163 p. : ill. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Electric current converters Voltage regulators Dissertations -- Electrical engineering Theses -- Electrical engineering Van Schalkwyk, Christine Analysis and design of a voltage regulator based on an AC-to-AC converter |
| title | Analysis and design of a voltage regulator based on an AC-to-AC converter |
| title_full | Analysis and design of a voltage regulator based on an AC-to-AC converter |
| title_fullStr | Analysis and design of a voltage regulator based on an AC-to-AC converter |
| title_full_unstemmed | Analysis and design of a voltage regulator based on an AC-to-AC converter |
| title_short | Analysis and design of a voltage regulator based on an AC-to-AC converter |
| title_sort | analysis and design of a voltage regulator based on an ac to ac converter |
| topic | Electric current converters Voltage regulators Dissertations -- Electrical engineering Theses -- Electrical engineering |
| url | http://hdl.handle.net/10019.1/53254 |
| work_keys_str_mv | AT vanschalkwykchristine analysisanddesignofavoltageregulatorbasedonanactoacconverter |