Thesis (PhD)--University of Stellenbosch, 2004. / 242 Leaves printed single pages, preliminary pages i-viii and numberd pages. Includes bibliography. Tables and figures. / ENGLISH ABSTRACT:The aim of the proposed study was to develop an electrical utility organisational
performance measure indicator that measures electrical network utilisation (U)
for the actual maximum demand and total energy transferred. The scope of the
study extended itself to include reliability and exogenous considerations. The
scope of the research study included three primary variables with secondary
variables as the performance measures.
The available data was screened and filtered from outliers, and thereafter,
multivariate analysis was applied in deriving the overall linear equation for each
of the above primary variables. The statistical process included the application
of principal component analysis and factor analysis, a comparison between the
two, and the derivation of linear equations. The study produced linear equations
relating to the former.
The primary variables were presented in the form of a 3-Dimensional scatter
plot. Each variable was inspected for linearity and clustering to validate the
results and include any previously excluded outliers that complied with linear
functionality. A practical application of the research findings was included. This
included the extremes of linearity and clustering. The research concludes with
further research opportunities in this study direction. / AFRIKAANSE OPSOMMING:Die doel van hierdie ondersoek was om 'n maatstaf te ontwikkel wat
elektrisiteitsverskaffers in staat stel om die effektiwiteit en benutting van die
elektriese transmissienetwerk te meet. Dit sluit die maksimum aanvraag en totale
hoeveelheid energie wat deur die transmissienetwerk oorgedra word in. Die
omvang van die studie is uitgebrei om ook eksterne faktore en
betroubaarheidsoorwegings in te sluit.
Die beskikbare inligting is gekeur en gefilter om uitskieters uit te skakel en daarna
is multivariate analise gebruik om 'n lineêre vergelyking vir elk van die primêre
veranderlikes te ontwikkel. Die statistiese analise het onder andere van
hoofkomponente analise en faktor analise gebruik gemaak. 'n Vergelyking tussen
die twee metodes is gemaak en liniêre vergelykings is afgelei.
Die primere veranderlikes was gesamelik getoon in n’ 3-dimensionele grafik. Die
lineariteit en groepering van elke veranderlike is egter ondersoek om die resultate
te staaf en enige uitskieters wat voorheen uitgesluit is maar wel aan die lineêre
verband voldoen het in te sluit. 'n Praktiese toepassing van die bevindings was
uitgevoer en het die uiterstes van lineariteit en groepering ingesluit. Die
ondersoek word afgesluit met 'n bespreking van moontlike verdere
navorsingsgeleenthede.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:sun/oai:scholar.sun.ac.za:10019.1/15933 |
| Date | 12 1900 |
| Creators | Auditore, Frank Anthony |
| Contributors | Mouton, H. du T., Stephen, R. G., University of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. |
| Source Sets | South African National ETD Portal |
| Detected Language | English |
| Type | Thesis |
| Format | viii, 242 leaves |
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