Study and Improvement of Single-Stage Power Factor Correction Techniques

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dc.contributor.authorZhang, Jindongen
dc.contributor.committeechairLee, Fred C.en
dc.contributor.committeememberLai, Jih-Shengen
dc.contributor.committeememberChen, Dan Y.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2014-03-14T20:52:16Zen
dc.date.adate1998-08-31en
dc.date.available2014-03-14T20:52:16Zen
dc.date.issued1998-08-06en
dc.date.rdate1999-08-31en
dc.date.sdate1998-08-06en
dc.description.abstractThis thesis work focuses on the study and improvement of single-stage power factor correction techniques. The generalized structures of the present pulse-width-modulation (PWM) integrated single-stage power factor correction (PFC) converters are presented. The typical PFC cells in the single-stage PFC converter are identified. After that, the necessary PFC condition is derived and verified to understand the principle of the single-stage PFC converters. As an example, the continuous current mode (CCM) current source single-stage PFC converter is studied. The circuit intuitions and design consideration of this converter are presented. Also, an improved current source single-stage PFC converter with a low-frequency auxiliary switch is proposed to overcome the problem of the previous converter. Experimental verification shows the improvement is effective. To evaluate single-stage PFC technique, a comparison study between the current source single-stage and the boost two-stage PFC converters is done in this thesis. It shows that for universal line application, due to the wide bus-capacitor voltage range, single-stage PFC converters have higher component ratings than two-stage PFC converters. This limits the application of single-stage PFC converter. Therefore, an interesting future work will be how to reduce the bus voltage range of single-stage PFC converters.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-72898-13450en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-72898-13450/en
dc.identifier.urihttp://hdl.handle.net/10919/36938en
dc.publisherVirginia Techen
dc.relation.haspartABSTRACT.PDFen
dc.relation.haspartACKNOWLEDGMENT.PDFen
dc.relation.haspartILLUSE-FIGS.PDFen
dc.relation.haspartCONTENTS.PDFen
dc.relation.haspartCHAP1.PDFen
dc.relation.haspartCHAP2.PDFen
dc.relation.haspartCHAP3.PDFen
dc.relation.haspartCHAP4.PDFen
dc.relation.haspartCHAP5.PDFen
dc.relation.haspartREF.PDFen
dc.relation.haspartVITA.PDFen
dc.relation.haspartTITLE1.PDFen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectpower factor correctionen
dc.subjectsingle-stageen
dc.titleStudy and Improvement of Single-Stage Power Factor Correction Techniquesen
dc.typeThesisen
thesis.degree.disciplineElectrical and Computer Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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