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Subharmonic power line carrier based island detection systems and methods

United States Patent

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June 18, 2019
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Systems and methods for identifying an island condition in a power distribution system and disconnecting distributed generators in the case of islanding. The systems and methods are used to enable reliable detection of island formation with high false-trip immunity, for any combination of distributed energy resources, and for distributed energy resources using grid support functions.
July 18, 2016
H02J 3/00 (20060101); H02J 3/38 (20060101); H02H 3/17 (20060101); H02J 13/00 (20060101);
GOVERNMENT RIGHTS The Government has rights to this invention pursuant to Contract No. DE-AC04-94AL85000 awarded by the U.S. Department of Energy.