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Durham e-Theses
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Methodologies for the Evaluation and Mitigation of Distribution Network Risk

BLAKE, SIMON,RICHARD (2010) Methodologies for the Evaluation and Mitigation of Distribution Network Risk. Doctoral thesis, Durham University.

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Abstract

Security of supply to customers is a major concern for electricity distribution network operators. This research concentrates in particular on the UK distribution system, and on sub-transmission and extra high voltage networks within that system. It seeks first to understand the principal causes of network risk and consequent loss of supply to customers as a result of faults at these voltage levels. It then develops a suite of methodologies to evaluate that risk, in terms of expected annual cost to the network operator, under a range of different scenarios and for both simple and complex network topologies. The scenarios considered include asset ageing, network automation and increasing utilisation as a consequence of electric vehicles and heat pumps. The methodologies also evaluate possible mitigation options, including active network management, and capital expenditure for both asset replacement and network reinforcement. A composite methodology is also developed, to consider combinations of scenarios and combinations of mitigation strategies. The thesis concludes by considering issues likely to affect the extent and possible increase of network risk over the period 2010-2030.

Item Type:Thesis (Doctoral)
Award:Doctor of Philosophy
Keywords:Electricity distribution, Network risk, Security of Supply, Risk Mitigation, Risk Evaluation, Composite Risk Methodologies
Faculty and Department:Faculty of Science > Engineering and Computing Science, School of
Thesis Date:2010
Copyright:Copyright of this thesis is held by the author
Deposited On:09 Mar 2011 14:21

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