This desertation shows that a unique class of network disruption exists that
can be regarded in isolation of other classes of network disturbances, namely
cascade disruption of generation (COG). This class of disturbance is being
defined in terms of the cascading effect that it exhibits in terms of the
disruption of power generating units in an interconnected power system.
Through a literature survey it is shown that a lack of formal acknowledgement
exists in the recognition of this class of disturbance both locally and abroad,
and that therefore there is a general absence of a policy framework to
manage the threat that is associated with the cascade disruption of
generation.
The analysis of the records of such events in the Southern African power pool
are analised, and the properties and characteristics of COG events are
explored. The extent of the threat to the interconnected power system that is
posed by COG, as a phenomenon, is quantified in the conte·xt of industry
practice and weaknesses are identified. It is shown that the occurrence of this
class of event is not entirely random, and that statistical methods can be used
in the development of mitigation strategies.
A management framework is developed with metrics for the monitoring,
evaluation and trending of the phenomenon, and to evaluate the ongoing risk.
Roles and responsibilities are sugested and a outline for the systematic
investigation of such events is developed.
In the conclusion, the possible benefits of the an COG managenent
framework are discussed and scope for future work in this regard is
suggested. / Thesis (MIng (Electrical and Electronic Engineering))--North-West University, Potchefstroom Campus, 2013
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:nwu/oai:dspace.nwu.ac.za:10394/9542 |
| Date | January 2012 |
| Creators | Viljoen, Machiel |
| Publisher | North-West University |
| Source Sets | South African National ETD Portal |
| Language | other |
| Detected Language | English |
| Type | Thesis |
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