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dc.contributor.authorHaq, Saeed UL 16:25:38 (GMT) 16:25:38 (GMT)
dc.description.abstractThe PWM (pulse-width-modulated) type voltage source converters (VSC) allow a precise speed control of induction motors with maximum achievable energy efficiency. However, the rapid growth of this technology has created quite a concern, as the PWM waveform produces complex transients that stress the motor insulation, to much severe levels, compared to the normal sinusoidal voltage waveforms. As a result, the machine may fail prematurely due to increased dielectric heating; high turn-to-turn stress caused by non-linear potential distributions; increased partial discharge (PD) activities due to overshoots in pulse waveforms; and built-up space charge by high frequency signals. The present work therefore addresses the problems associated with enamelled wires and groundwall insulation in motor stator coil working under PWM-VSC.en
dc.format.extent5838954 bytes
dc.publisherUniversity of Waterlooen
dc.subjectPWM Drivesen
dc.subjectMotor Insulation Systemen
dc.titleA Study on Insulation Problems in Drive Fed Medium Voltage Induction Motorsen
dc.typeDoctoral Thesisen
dc.subject.programElectrical and Computer Engineeringen and Computer Engineeringen
uws-etd.degreeDoctor of Philosophyen

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