Control Design and Analysis of an Advanced Induction Motor Electric Vehicle Drive

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dc.contributor.authorHerwald, Marc A.en
dc.contributor.committeechairBoroyevich, Dushanen
dc.contributor.committeememberLindner, Douglas K.en
dc.contributor.committeememberLai, Jih-Shengen
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2014-03-14T20:37:26Zen
dc.date.adate1999-05-20en
dc.date.available2014-03-14T20:37:26Zen
dc.date.issued1999-04-29en
dc.date.rdate2000-05-20en
dc.date.sdate1999-05-17en
dc.description.abstractThis thesis is about the development and performance enhancement of an induction motor electric vehicle drive system. The fundamental operation of the induction motor drive hardware and control software are introduced, and the different modulation techniques tested are described. A software simulation package is developed to assist in the control design and analysis of the drive system. Next, to establish the efficiency gains obtained by using space vector modulation in the improved drive system, an inverter with hysteresis current control is compared to the same inverter with space vector modulation in steady state and on separate driving profiles. A method for determining induction motor harmonic losses is introduced and is based on obtaining the phase current harmonics from sampled induction motor stator phase currents obtained. Using a semi-empirical loss model, the induction motor losses are compared between different pulse width modulation control strategies throughout the torque versus speed operating region. Next, several issues related to the robustness of the control design are addressed. To obtain good performance in the actual vehicle, a new method for driveline resonance compensation is developed and proven to work well through simulation and experiment. Lastly, this thesis discusses the development of a new method to compensate for the gain and phase error obtained in the feedback of the d-axis and q-axis stator flux linkages. Improved accuracy of the measured stator flux linkages will be shown to improve the field oriented controller by obtaining a more accurate measurement of the feedback electromagnetic torque.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-051799-005712en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-051799-005712/en
dc.identifier.urihttp://hdl.handle.net/10919/32934en
dc.publisherVirginia Techen
dc.relation.haspartmhthesis.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectdrive resonance compensationen
dc.subjectinduction motor drivesen
dc.subjectspace vector modulationen
dc.subjectelectric vehicleen
dc.subjectcomparison of induction motor lossesen
dc.subjectdrive cycle simulationen
dc.subjectfield oriented controlen
dc.subjectstator flux linkage measurementen
dc.titleControl Design and Analysis of an Advanced Induction Motor Electric Vehicle Driveen
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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