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A DC chopper controller for a battery electric vehicle
The battery electric vehicle is presented as a pollution free alternative to the internal combustion engined vehicle as a form of commuter transport in city centres. To conserve battery energy as much as possible, an efficient drive system, consisting of a chopper controller and a permanent magnet m...
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| Format: | Thesis |
| Language: | English |
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Department of Electrical Engineering
2016
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| _version_ | 1867613231373090816 |
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| access_status_str | Open Access |
| author | Claassen, Michael David |
| author2 | Enslin, NC de V |
| author_browse | Claassen, Michael David Enslin, NC de V |
| author_facet | Enslin, NC de V Claassen, Michael David |
| author_sort | Claassen, Michael David |
| collection | Thesis |
| description | The battery electric vehicle is presented as a pollution free alternative to the internal combustion engined vehicle as a form of commuter transport in city centres. To conserve battery energy as much as possible, an efficient drive system, consisting of a chopper controller and a permanent magnet motor, is described and tested in four modes of operation - two modes of motoring and two of regenerative braking. From the experimental results, it was estimated that approximately 10% of the energy expended by the vehicle during motoring could be returned to the battery if regenerative braking is employed under stop-start driving conditions. The operation of transistor and thyristor choppers is described, and their suitability for use in a vehicle drive system is discussed. A proposed vehicle control system, incorporating a thyristor array and associated logic for implementing the mode selection, is described and evaluated. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/17667 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:51.499Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Department of Electrical Engineering |
| publisherStr | Department of Electrical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/17667 A DC chopper controller for a battery electric vehicle Claassen, Michael David Enslin, NC de V Electrical Engineering The battery electric vehicle is presented as a pollution free alternative to the internal combustion engined vehicle as a form of commuter transport in city centres. To conserve battery energy as much as possible, an efficient drive system, consisting of a chopper controller and a permanent magnet motor, is described and tested in four modes of operation - two modes of motoring and two of regenerative braking. From the experimental results, it was estimated that approximately 10% of the energy expended by the vehicle during motoring could be returned to the battery if regenerative braking is employed under stop-start driving conditions. The operation of transistor and thyristor choppers is described, and their suitability for use in a vehicle drive system is discussed. A proposed vehicle control system, incorporating a thyristor array and associated logic for implementing the mode selection, is described and evaluated. 2016-03-14T07:02:14Z 2016-03-14T07:02:14Z 1973 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/17667 eng application/pdf Department of Electrical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Electrical Engineering Claassen, Michael David A DC chopper controller for a battery electric vehicle |
| thesis_degree_str | Master's |
| title | A DC chopper controller for a battery electric vehicle |
| title_full | A DC chopper controller for a battery electric vehicle |
| title_fullStr | A DC chopper controller for a battery electric vehicle |
| title_full_unstemmed | A DC chopper controller for a battery electric vehicle |
| title_short | A DC chopper controller for a battery electric vehicle |
| title_sort | dc chopper controller for a battery electric vehicle |
| topic | Electrical Engineering |
| url | http://hdl.handle.net/11427/17667 |
| work_keys_str_mv | AT claassenmichaeldavid adcchoppercontrollerforabatteryelectricvehicle AT claassenmichaeldavid dcchoppercontrollerforabatteryelectricvehicle |