Title page for ETD etd-43098-195541


Type of Document Master's Thesis
Author Cuadros O., Carlos E.
Author's Email Address ccuadros@vt.edu
URN etd-43098-195541
Title Modified Space Vector Modulation for a Zero-Voltage Transition Three-Phase to DC Bi-directional Converter
Degree Master of Science
Department Electrical Engineering
Advisory Committee
Advisor Name Title
Boroyevich, Dushan Committee Chair
Chen, Dan Y. Committee Member
Lee, Fred C. Committee Member
Keywords
  • Three-Phase
  • Rectifier
  • Inverter
  • Soft-Switching
  • Bidirectional
Date of Defense 1995-04-01
Availability unrestricted
Abstract
A modified space vector modulation algorithm for a zero-voltage transition three-phase voltage source inverter/boost rectifier is presented. The converter is intended for high performance medium power applications requiring bi-directional power flow. The proposed modified space vector modulation allows the main switches to be operated with constant frequency and soft switching for any phase shift between the three-phase currents and voltages. The modulation algorithm also eliminates any low frequency distortion caused by the zero-voltage transition and can be extended to other soft-switching PWM three-phase converters. Experimental verification of the proposed algorithm is also presented as well as a comparison to the hard switched PWM converter.
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