A dissertation submitted to the Faculty of Engineering, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Master of Science in Engineering.
Johannesburg
1996 / The use of computer-based tools in the design of electrical distribution
networks results in the cost effective production and implementation of
designs. This is because they help automate time-consuming routine tasks
and enable the optimisation of certain aspects of a network design.
The production of a tool that performs an optimisation on the low voltage (LV)
portion of a distribution network is discussed. It uses the influence that a
network's topology has on its associated cost, by applying a search that
modifies the topology to result in a minimum cost. The modification of the
network's topology is achieved through changing junction positions to
alternative locations. It operates on an entire radial LV network, and therefore
considers the coupling between junctions in the same network. The user of
the tool must specify the alternative locations for each junction in the network,
as well as information about the network, such as cable lengths and cable
types.
The search algorithm is based on an adaptation of the branch and bound
method, which is a reduced search algorithm. It has been chosen as opposed
to an exhaustive search algorithm to reduce computational requirements.
The tool Is most useful for optimising completely underground distribution
systems. Test results revealed a 7% saving in the cost of cables for a specific
case study.
The software has been developed with the application of object-oriented
analysis and design within an ISO 9001 accredited software development
environment.
iii / GR2017
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:wits/oai:wiredspace.wits.ac.za:10539/22128 |
| Date | January 1996 |
| Creators | Apostolellis, Justin |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | Online resource (1 v.(various pagings), application/pdf |
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