Thesis (MScIng)--University of Stellenbosch, 2004. / ENGLISH ABSTRACT: This thesis investigates methods to extract the maximum amount of electrical energy from a py
panel. The thesis is divided into four parts, focussing on different aspects relating to this topic.
The first part will investigate the role that py energy is likely to play in South Africa's future
energy scenario, by looking at topics like the greenhouse effect and the economics of energy
production.
Secondly the thesis will look at how to position py panels optimally for maximum energy
generation through the year. A software model of a py panel is developed which can calculate
available py energy and energy generation costs for a given location, based on parameters like
the positioning of the py panel and historic weather data.
Thirdly the optimal design of a maximum power point tracker is investigated. The optimal
design, based on a k-sweep voltage ratio maximum power point tracking algorithm, is
implemented using a DSP controlled boost converter circuit.
Finally, the best methods to store energy generated using py panels are explored. Energy storage
technologies are compared for rural, off-grid applications in South Africa, and the design and
implementation of a pulse-charging lead-acid battery charging strategy is explained. / AFRIKAANSE OPSOMMING: Hierdie tesis ondersoek maniere waarop die maksimum hoeveelheid elektriese energie vanuit 'n
py paneelonttrek kan word. Die tesis word in vier dele verdeel, wat elkeen fokus op 'n ander
aspek van die onderwerp.
Die eerste kyk na die rol wat PV energie potensieël kan speel in die toekomstige energie
produksie binne Suid Afrika, deur te kyk na onderwerpe soos die kweekhuis effek, en die
ekonomiese sy van energie produksie.
Tweedens kyk die tesis na metodes om 'n py paneeloptimaal te posisioneer vir maksimum
energie deur die jaar. 'n Sagteware model van 'n PV paneel word ontwikkel wat die hoeveelheid
beskikbare energie, en die kostes daarvan, kan bereken vir 'n spesifieke plek, gebaseer op PV
paneel data en vorige jare se atmosferiese data.
Derdens word agtergrond oor maksimum drywingspunt volgers gegee, en die ontwerp en bou
van 'n k-variërende, spannings verhouding maksimum kragpunt volger verduidelik,
geimplimenteer deur van 'n DSP en 'n opkapper baan gebruik te maak.
Laastens word die beste maniere om PV energie te stoor, vir landelike toepassings weg vanaf die
Eskom netwerk, ondersoek. Alle beskikbare tegnologieë word eers vergelyk met mekaar, waarna
die ontwerp en bou van 'n puls-laai loodsuur batterylaaier verduidelik word.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:sun/oai:scholar.sun.ac.za:10019.1/50021 |
| Date | 12 1900 |
| Creators | Bekker, Bernard |
| Contributors | Beukes, H. J., Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. |
| Publisher | Stellenbosch : Stellenbosch University |
| Source Sets | South African National ETD Portal |
| Language | en_ZA |
| Detected Language | Unknown |
| Type | Thesis |
| Format | 134 p. : ill. |
| Rights | Stellenbosch University |
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