Adaptive protection for distribution grid based on area concept
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United States of America Patent
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Feb 6, 2018
Issued Date -
N/A
app pub date -
Apr 30, 2014
filing date -
Aug 23, 2013
priority date (Note) -
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Abstract
Method of protecting a distribution network with a line interconnecting busbars, each busbar being connectable, by means of switching devices adjacent to the busbar, to the line and to loads and/or generators. The method divides the distribution network in multiple protection areas, each comprises a busbar, a protection device and an area controller. Upon a change in connect status of a distribution feeder line, load or generator connectable to one of the busbar, the logic controller in this protection area re-calculates the short circuit level of the areas. Based on the recalculated short circuit levels, the protection settings of the areas may be adapted. The embodiment also provides a system and computer program product adapted to perform the method.
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