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Title: Impact of hybrid distributed generation allocation on short circuit currents in distribution systems
Other Titles: Impact of hybrid distributed generation allocation on short circuit currents
Authors: Afifi, Sara Nader
Advisors: Darwish, M
Taylor, G
Keywords: Distributed generation;Distribution networks;Renewable energy;Short circuit analysis;Power systems studies
Issue Date: 2017
Publisher: Brunel University London
Abstract: The rapid development in renewable generation technologies and flexible distribution networks requires current infrastructure to be modified and developed to adapt high penetration levels of distributed generation. Existing distribution networks were not initially designed and anticipated to accommodate generators on large scale. Short circuit studies ensure the effectiveness of protection equipment settings and coordination is maintained in case of short circuit, despite any additional distributed generation is connected to the distribution network. This research aims to study and compare the different network fault situations for wind energy systems with induction generators, photovoltaic energy systems, and diesel generators connected to distribution networks. The simulation study will be conducted on the existing IEEE case study systems including 13 bus and 30 bus distribution test systems, using ETAP software. Short circuit analysis will be performed twice to include the ANSI/IEEE and the IEC methods for short circuit currents calculation. Simulated results showed that the wind energy systems have significant impact on the short circuit currents, whereas the photovoltaic energy systems are found to have inconsequential effect. The most moderate solution is found to be a distributed generation mix.
Description: This thesis was submitted for the award of Doctor of Philosophy and was awarded by Brunel University London
Appears in Collections:Electronic and Electrical Engineering
Dept of Electronic and Electrical Engineering Theses

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