Energy storage for power factor correction in battery charger for electric-powered vehicles

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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.inventorWang, Huien
dc.contributor.inventorNgo, Khai D.en
dc.date.accessed2019-02-15en
dc.date.accessioned2019-02-26T22:24:01Zen
dc.date.available2019-02-26T22:24:01Zen
dc.date.filed2013-12-23en
dc.date.issued2018-03-13en
dc.description.abstractSwitches of a switching circuit used to control operation of an electric motor such as in an electrically powered vehicle connect respective windings of the electric motor as a single phase inductor during battery charging. The inductor can then store inherent low frequency, second order ripple power and return that power to a load presented by a battery during battery charging to deliver substantially constant current. Storage of ripple power in the inductor allows the capacitance value, size, weight and cost of a filter capacitor of a power factor correction circuit providing input power to a battery charger to be reduced by an order of magnitude or more. Direction of current flow through the inductor is periodically reversed to avoid magnetizing the motor.en
dc.format.mimetypeapplication/pdfen
dc.identifier.applicationnumber14139059en
dc.identifier.patentnumber9914362en
dc.identifier.urihttp://hdl.handle.net/10919/87834en
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/62/143/099/0.pdfen
dc.language.isoenen
dc.publisherUnited States Patent and Trademark Officeen
dc.subject.cpcB60L11/1803en
dc.subject.cpcB60L11/1812en
dc.subject.cpcB60L2210/14en
dc.subject.cpcB60L2220/54en
dc.subject.cpcB60L2240/526en
dc.subject.cpcB60L2240/527en
dc.subject.cpcB60L2240/529en
dc.subject.cpcH02M1/14en
dc.subject.cpcH02M1/4225en
dc.subject.cpcH02M7/5387en
dc.subject.cpcY02T10/641en
dc.subject.cpcY02T10/7005en
dc.subject.cpcY02T10/7072en
dc.subject.cpcY02T10/7225en
dc.subject.cpcY02T90/127en
dc.subject.cpcY02T90/14en
dc.titleEnergy storage for power factor correction in battery charger for electric-powered vehiclesen
dc.typePatenten
dc.type.dcmitypeTexten
dc.type.patenttypeutilityen

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