Method and apparatus for identifying an operational phase of a motor phase winding and controlling energization of the phase winding

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dc.contributor.assigneeVirginia Tech Intellectual Properties, Inc.en
dc.contributor.inventorRamu, Krishnanen
dc.contributor.inventorBhanot, Ajiten
dc.date.accessed2016-08-19en
dc.date.accessioned2016-08-24T17:54:47Zen
dc.date.available2016-08-24T17:54:47Zen
dc.date.filed2004-11-24en
dc.date.issued2008-08-12en
dc.description.abstractA method for identifying an operational phase of a motor may include obtaining a first value of a signal that is indicative of the operational phase of the motor and obtaining a second value of the signal after a period of time has expired. The method further includes identifying a first operational phase of the motor if the second value exceeds the first value by a non-negative first threshold value. A second operational phase of the motor is identified if the second value does not exceed the first value by the first threshold value. The first and second operational phases may correspond to relative positions of a motor's rotor and stator, such that periods of energization may be identified for producing motoring or regenerative torque.en
dc.format.mimetypeapplication/pdfen
dc.identifier.applicationnumber10999646en
dc.identifier.patentnumber7412339en
dc.identifier.urihttp://hdl.handle.net/10919/72589en
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/39/123/074/0.pdfen
dc.language.isoen_USen
dc.publisherUnited States Patent and Trademark Officeen
dc.subject.cpcH02P25/083en
dc.subject.uspc318/484en
dc.subject.uspcother702/65en
dc.titleMethod and apparatus for identifying an operational phase of a motor phase winding and controlling energization of the phase windingen
dc.typePatenten
dc.type.dcmitypeTexten
dc.type.patenttypeutilityen

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