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2012 - 11th Annual NC State Summer Undergraduate Research Symposium
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Session Time :
8/1/12 1:30 PM - 8/1/12 2:45 PM
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Content Area : NSF FREEDM Systems Center
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Lead Student Presenters : Nathan R Roberts
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Abstract Title : Overcurrent Protection Relays: Defenders of the Distribution System
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Abstract :
Protection is a very critical topic in the field of Power Systems. Defending our system from faults requires various dedicated devices, which are called protection relays. Faults are the reasons we are left in the dark or without power; this can be a huge inconvenience to us. Unprotected fault occurrences within the system can be a danger to life, property and can cost a great deal of money when left unattended. In recent years the development of Solid State Transformers has given us an alternative to the modern Grid, a grid we can potentially make Smart. I have been given the task to develop the schemes necessary to protect a Radial conventional distribution system and a Solid State Transformer based loop Distribution system that is currently in development at the FREEDM System Center. Protection Relays require their own settings and coordination to provide sufficient protection for the system. Based on my research and simulations, I have come to the conclusion that conventional overcurrent relays used to protect radial distribution systems are not suitable for the protection of the new Smart Grid and must be updated to function for this needed change.
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Mentor and/or Co-Author : Mesut E. Baran
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