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High voltage boost DC-Dc converter suitable for variable voltage sources and high power photovoltaic application
Dissertation (MEng)--University of Pretoria, 2013.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2014
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| _version_ | 1867613465099632640 |
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| access_status_str | Open Access |
| author2 | Gitau, Michael Njoroge |
| author_browse | Gitau, Michael Njoroge |
| author_facet | Gitau, Michael Njoroge |
| collection | Thesis |
| dc_rights_str_mv | © 2014 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MEng)--University of Pretoria, 2013. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/37320 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:36:34.553Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/37320 High voltage boost DC-Dc converter suitable for variable voltage sources and high power photovoltaic application Gitau, Michael Njoroge fredmukundi@gmail.com Mwaniki, Fredrick Mukundi Tapped-coupled-inductor Interleaving High step-up DC-DC converter Coupling coefficient Photo-voltaic Digital control Voltage regulation UCTD Dissertation (MEng)--University of Pretoria, 2013. Important considerations of a photovoltaic (PV) source are achieving a high voltage and drawing currents with very little ripple component from it. Furthermore, the output from such a source is variable depending on irradiation and temperature. In this research, literature review of prior methods employed to boost the output voltage of a PV source is examined and their limitations identified. This research then proposes a multi-phase tapped-coupled inductor boost DC-DC converter that can achieve high voltage boost ratios, without adversely compromising performance, to be used as an interface to a PV source. The proposed converter achieves minimal current and voltage ripple both at the input and output. The suitability of the proposed converter topology for variable input voltage and variable power operation is demonstrated in this dissertation. The proposed converter is also shown to have good performance at high power levels, making it very suitable for high power applications. Detailed analysis of the proposed converter is done. Advantages of the proposed converter are explained analytically and confirmed through simulations and experimentally. Regulation of the converter output voltage is also explained and implemented using a digital controller. The simulation and experimental results confirm that the proposed converter is suitable for high power as well as variable power, variable voltage applications where high voltage boost ratios are required. gm2014 Electrical, Electronic and Computer Engineering Unrestricted 2014-04-01T09:13:11Z 2014-04-01T09:13:11Z 2013-09-04 2013 Dissertation Mwaniki, FM 2013, High voltage boost DC-Dc converter suitable for variable voltage sources and high power photovoltaic application, MEng dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/37320> E13/9/1031/gm http://hdl.handle.net/2263/37320 en © 2014 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Tapped-coupled-inductor Interleaving High step-up DC-DC converter Coupling coefficient Photo-voltaic Digital control Voltage regulation UCTD High voltage boost DC-Dc converter suitable for variable voltage sources and high power photovoltaic application |
| title | High voltage boost DC-Dc converter suitable for variable voltage sources and high power photovoltaic application |
| title_full | High voltage boost DC-Dc converter suitable for variable voltage sources and high power photovoltaic application |
| title_fullStr | High voltage boost DC-Dc converter suitable for variable voltage sources and high power photovoltaic application |
| title_full_unstemmed | High voltage boost DC-Dc converter suitable for variable voltage sources and high power photovoltaic application |
| title_short | High voltage boost DC-Dc converter suitable for variable voltage sources and high power photovoltaic application |
| title_sort | high voltage boost dc dc converter suitable for variable voltage sources and high power photovoltaic application |
| topic | Tapped-coupled-inductor Interleaving High step-up DC-DC converter Coupling coefficient Photo-voltaic Digital control Voltage regulation UCTD |
| url | http://hdl.handle.net/2263/37320 |