

Type of Document Dissertation Author Wang, Ruxi Author's Email Address ruxi@vt.edu URN etd-07112012-004349 Title High Power Density and High Temperature Converter Design for Transportation Applications Degree PhD Department Electrical and Computer Engineering Advisory Committee
Advisor Name Title Boroyevich, Dushan Committee Chair Centeno, Virgilio A. Committee Member De La Ree Lopez, Jaime Committee Member Leech, Irene E. Committee Member Wang, Fei Fred Committee Member Keywords
- High power density
- Ripple energy
- Single phase rectifier
- High temperature
- Harsh environment
- Silicon carbide
- Packaging
- Compact EMI filter
- Coupling
Date of Defense 2012-06-25 Availability unrestricted Abstract The continual development of high-power-density power electronic converters is driven particularly by modern transportation applications like electrical vehicles and more electric aircraft where the space and carrier capability is limited. However, there are several challenges related to transportation applications such as fault tolerance for safety concern, high temperature operation in extreme environments and more strict electromagnetic compatibility requirement. These challenges will increase difficulties for more electrical system adoption in the transportation applications.In this dissertation, comprehensive methodologies including more efficient energy storage solution, better power electronics devices capability, better packaging performance and more compact EMI filter design are analyzed and proposed for the goal of high power density converter design in transportation applications.
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