Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
A three-phase AC/AC matrix converter system
Thesis (MScIng)--University of Stellenbosch, 2004.
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | en_ZA |
| Published: |
Stellenbosch : University of Stellenbosch
2011
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613929120727040 |
|---|---|
| access_status_str | Open Access |
| author | Gebrehiwet Gebregergis, Abraham |
| author2 | Mouton, H. du T. |
| author_browse | Gebrehiwet Gebregergis, Abraham Mouton, H. du T. |
| author_facet | Mouton, H. du T. Gebrehiwet Gebregergis, Abraham |
| author_sort | Gebrehiwet Gebregergis, Abraham |
| collection | Thesis |
| dc_rights_str_mv | University of Stellenbosch |
| description | Thesis (MScIng)--University of Stellenbosch, 2004. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/16324 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:43:57.159Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2011 |
| publishDateRange | 2011 |
| publishDateSort | 2011 |
| publisher | Stellenbosch : University of Stellenbosch |
| publisherStr | Stellenbosch : University of Stellenbosch |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/16324 A three-phase AC/AC matrix converter system Gebrehiwet Gebregergis, Abraham Mouton, H. du T. University of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Electric current converters Theses -- Electrical engineering Dissertations -- Electrical engineering Thesis (MScIng)--University of Stellenbosch, 2004. ENGLISH ABSTRACT: The thesis discusses the analysis and design of a three-phase-to-three-phase direct AC-AC matrix converter. A background study of the various matrix converter topologies and their modulation strategies are presented. The associated PWM strategy of each matrix converter topology is investigated. In addition, a detailed explanation of the three safe commutation strategies is presented. The research focuses on the design and analysis of the direct AC-AC matrix converter topology. That includes the design of the main bi-directional power converter circuit, gate drive circuit, current direction detection circuit, voltage measurement circuit and protection circuitry. Moreover, it covers the development of the direct control algorithm based on the four-step safe current commutation- and the two-step voltage commutation strategy. A “PEC33” controller board is used to implement the developed control algorithm. Furthermore, simulation results of the direct and the indirect matrix converter topologies are presented. The results obtained from the experimental test performed on the direct AC-AC matrix converter topology are also presented. The conclusion drawn is discussed at the final stage of the report. AFRIKAANSE OPSOMMING: Hierdie tesis bevat die analise en ontwerp van ‘n drie-fase na drie-fase direkte WS-WS matriksomsetter. ‘n Agtergrondstudie van verskeie ander matriksomsetter topologieë word aangebied. Die ge-assosieerde PWM beheerstrategie van elke matriksomsetter topologie is ondersoek. Hierby word ‘n gedetaileerde verduideliking van drie veilige kommutasie strategieë ingesluit. Die navorsing fokus op die ontwerp en analise van die direkte WS-WS matriksomsetter topologie. Dit sluit die volgende in: die ontwerp van die hoof bi-direksionele drywingsomsetterbaan; die hek aandryfbaan; die stroomrigting deteksiebaan; die spanningsmeetbaan en die beveiliging stroombane. Dit dek ook die ontwikkeling van die direkte beheeralgoritme wat gebasseer is op die vier-stap veilige stroomkommutasie- en die twee-stap spanningskommutasie strategie. ‘n “PEC33” beheerkaart is gebruik om hierdie beheeralgoritme te implementer. Simulasie resultate van beide die direkte sowel as die indirekte matriksomsetter topologieë word ingesluit. Die eksperimentele resultate wat met die direkte WS-WS matriksomsetter topologie verkry is word aangebied en bespreek. Die gevolgtrekking word in die finale afdeling van die verslag bespreek. 2011-08-30T09:42:58Z 2011-08-30T09:42:58Z 2004-12 Thesis http://hdl.handle.net/10019.1/16324 en_ZA University of Stellenbosch xxi, 153 leaves : ill. application/pdf Stellenbosch : University of Stellenbosch |
| spellingShingle | Electric current converters Theses -- Electrical engineering Dissertations -- Electrical engineering Gebrehiwet Gebregergis, Abraham A three-phase AC/AC matrix converter system |
| title | A three-phase AC/AC matrix converter system |
| title_full | A three-phase AC/AC matrix converter system |
| title_fullStr | A three-phase AC/AC matrix converter system |
| title_full_unstemmed | A three-phase AC/AC matrix converter system |
| title_short | A three-phase AC/AC matrix converter system |
| title_sort | three phase ac ac matrix converter system |
| topic | Electric current converters Theses -- Electrical engineering Dissertations -- Electrical engineering |
| url | http://hdl.handle.net/10019.1/16324 |
| work_keys_str_mv | AT gebrehiwetgebregergisabraham athreephaseacacmatrixconvertersystem AT gebrehiwetgebregergisabraham threephaseacacmatrixconvertersystem |