Anti-islanding detection for three-phase distributed generation

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dc.contributor.assigneeVirginia Tech Intellectual Properties, Inc.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.contributor.departmentCenter for Power Electronics Systemsen
dc.contributor.inventorDong, Dongen
dc.contributor.inventorBoroyevich, Dushanen
dc.contributor.inventorMattavelli, Paoloen
dc.date.accessed2019-02-15en
dc.date.accessioned2019-02-26T22:23:54Zen
dc.date.available2019-02-26T22:23:54Zen
dc.date.filed2013-08-16en
dc.date.issued2017-04-25en
dc.description.abstractWobbling the operating frequency of a phase-locked loop (PLL), preferably by adding a periodic variation is feedback gain or delay in reference signal phase allows the avoidance of any non-detection zone that might occur due to exact synchronization of the phase locked loop operating frequency with a reference signal. If the change in PLL operating frequency is periodic, it can be made of adequate speed variation to accommodate and time requirement for islanding detection or the like when a reference signal being tracked by the PLL is lost. Such wobbling of the PLL operating frequency is preferably achieved by addition a periodic variable gain in a feedback loop and/or adding a periodically varying phase delay in a reference signal and/or PLL output.en
dc.format.mimetypeapplication/pdfen
dc.identifier.applicationnumber13968487en
dc.identifier.patentnumber9634673en
dc.identifier.urihttp://hdl.handle.net/10919/87806en
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/73/346/096/0.pdfen
dc.language.isoenen
dc.publisherUnited States Patent and Trademark Officeen
dc.subject.cpcH02J3/38en
dc.subject.cpcH02J2003/388en
dc.subject.cpcH03L7/08en
dc.titleAnti-islanding detection for three-phase distributed generationen
dc.typePatenten
dc.type.dcmitypeTexten
dc.type.patenttypeutilityen

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