DC-DC converter current source fed naturally commutated brushless DC motor drive

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dc.contributor.advisor Toliyat , Hamid A . en_US
dc.contributor.committeeMember Langari , Gholamreza en_US
dc.creator Khopkar , Rahul Vijaykumar en_US
dc.date.accessioned 2004 -11 -15T19 :52 :16Z
dc.date.accessioned 2014 -02 -19T18 :34 :34Z
dc.date.available 2004 -11 -15T19 :52 :16Z
dc.date.available 2014 -02 -19T18 :34 :34Z
dc.date.created 2003 -08 en_US
dc.date.issued 2004 -11 -15T19 :52 :16Z
dc.identifier.uri http : / /hdl .handle .net /1969 .1 /1257
dc.description.abstract The aim of this work is to reduce the cost and size of a brushless dc motor (BLDC ) drive as well as increase the reliability and ruggedness of that drive . Traditional BLDC drives use Voltage Source Inverters (VSI ) that utilize hard switching , thereby generating switching losses and entail the use of large heatsinks . VSI needs a huge dc link capacitor that is inherently unreliable and is one of the most expensive components of a drive . Hence , a Current Source Inverter (CSI ) is used to replace the hard switchings by natural turn -off , thereby eliminating the heatsinks as well as the large dc link capacitor . A controlled rectifier together with a large inductor act as the current source . The only disadvantage is the large value of the dc link inductor and the huge number of turns needed to achieve these values of the inductances lead to huge resistive losses . Therefore , it is shown that it is possible to replace the controlled rectifier and the large inductor with a suitable dc -dc converter based current source switching at high frequencies and a much smaller value of the dc link inductor . Switching at high frequencies makes it possible to reduce the value of the dc link inductor without increasing the current ripple . Hence , it is possible to have the advantages of using a CSI as well as reduce the value of the dc link inductor without a corresponding increase in the heat sink and snubber requirements . en_US
dc.format.extent 755604 bytes
dc.format.medium electronic en_US
dc.format.mimetype application /pdf
dc.language.iso en _US en_US
dc.publisher Texas A &M University en_US
dc.subject LCI en_US
dc.title DC -DC converter current source fed naturally commutated brushless DC motor drive en_US
dc.type Book en
dc.type.genre Electronic Thesis en_US
dc.type.material text en_US
dc.format.digitalOrigin born digital en_US

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DC-DC converter current source fed naturally commutated brushless DC motor drive. Available electronically from http : / /hdl .handle .net /1969 .1 /1257 .

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