Network radiality in reconfiguration of a radial power distribution system using a matrix-structured knowledge-based system
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United States of America Patent
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Oct 18, 2011
Grant Date -
Nov 20, 2008
app pub date -
Oct 30, 2007
filing date -
Oct 30, 2006
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Expired
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Abstract
A knowledge-based system is defined that ensures network radiatity during reconfiguration of a power distribution system. Network radiality heuristics idenufy a pair of switching operations that will preserve radiality. A line section table specifies the line section identifier, start bus, end bus, line section type, and switch existence for each line section in the network. A bus table identifies the line section that supplies the bus and those line sections that are fed by the bus for each bus in the network. A matrix-structured knowledge base with five distinct rule bases is used. The line section and bus tables must be updated after any switching operations are enacted. Extensive simulations of the knowledge-based system revealed that a solution was found in a time-efficient manner. This knowledge-based system enhances network reliability and hence prevents power outages. Also, the knowledge-based system can be used to preserve radiality during optimization of power distribution system operations for different objectives.
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