Use this URL to cite or link to this record in EThOS:
Title: Impact of hybrid distributed generation allocation on short circuit currents in distribution systems
Author: Afifi, Sara Nader
ISNI:       0000 0004 7658 0726
Awarding Body: Brunel University London
Current Institution: Brunel University
Date of Award: 2017
Availability of Full Text:
Access from EThOS:
Access from Institution:
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.
Supervisor: Darwish, M. ; Taylor, G. Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Distributed generation ; Distribution networks ; Renewable energy ; Short circuit analysis ; Power systems studies