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dc.contributor.authorMaillet, Yoannen_US
dc.date.accessioned2014-03-14T20:44:43Z
dc.date.available2014-03-14T20:44:43Z
dc.date.issued2008-08-29en_US
dc.identifier.otheretd-09032008-160122en_US
dc.identifier.urihttp://hdl.handle.net/10919/34911
dc.description.abstractThis works systematically presents various strategies to reduce both differential mode (DM) and common mode (CM) noise using a passive filter in a dc-fed motor drive. Following a standard approach a baseline filter is first designed to be used as reference to understand and compare the available filter topologies. Furthermore, it is used to analyze the grounding scheme of EMI filter and more specifically provide guidelines to ground single or multi stages filter. Finally, the baseline filter is investigated to recognize the possible solutions to minimize the size of the whole filter. It turns out that the CM choke and DM capacitors are the two main downsides to achieve a small EMI filter. Therefore, ideas are proposed to improve the CM choke by using other type of material such as nano crystalline core, different winding technique and new integrated method. A material comparison study is made between the common ferrite core and the nano crystalline core. Its advantages (high permeability and saturation flux density) and drawback (huge permeability drop) are analyzed thought multitudes of small and large signals tests. A novel integrated filter structure is addressed that maximizes the window area of the ferrite core and increases its leakage inductance by integrating both CM and DM inductances on the same core. Small- and large-signal experiments are conducted to verify the validity of the structure showing an effective size reduction and a good improvement at low and high frequencies. To conclude, a final filter version is proposed that reduce the volume of the baseline filter by three improve the performances in power tests.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartMaillet.pdfen_US
dc.relation.haspartMaillet2.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectElectromagnetic Interference (EMI)en_US
dc.subjectMotor Driveen_US
dc.titleHigh-Density Discrete Passive EMI Filter Design for Dc-Fed Motor Drivesen_US
dc.typeThesisen_US
dc.contributor.departmentElectrical and Computer Engineeringen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
dc.contributor.committeechairWang, Fei Freden_US
dc.contributor.committeememberWang, Shuoen_US
dc.contributor.committeememberBoroyevich, Dushanen_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-09032008-160122/en_US
dc.date.sdate2008-09-03en_US
dc.date.rdate2010-12-22
dc.date.adate2008-10-02en_US


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