Enabling miniaturized grid-interface power conversion
Name
1124682384-MIT.pdf
Size
36.49 MB
Format
Adobe PDF
Checksum (MD5)
f5032c875da6293c0288382375bf0f67
Author(s)
Hanson, Alex J.(Alex Jordan)
Advisor(s)
David J. Perreault.
Date Issued
2019
Publisher
Massachusetts Institute of Technology
Abstract
Many of the most critical challenges of the twenty-first century revolve around energy and its management. Improved performance (efficiency, density) in electrical energy management systems require advancements in a number of areas - semiconductor devices, passive energy storage components, and a variety of circuit- and system-level concerns. The sections of this thesis are somewhat distinct and may find application in a great variety of circumstances. Nevertheless, they can be understood as contributions to a single application system: a grid-interface power converter. These kinds of converters have several unique aspects that make them good targets for research, including a heavy reliance on magnetic components, relatively high voltages for application of emerging GaN transistors, wide range of operating voltages and powers, and a twice-line-frequency energy storage component that is difficult to miniaturize. This thesis will present a high-frequency inductor structure with greatly improved density, an exploration of the limits of magnetic-based current sensing, a method for characterizing GaN losses with large-signal excitations, a control approach for miniaturizing grid-interface energy buffers, and a grid-interface circuit with several advantages over the state of the art.
Description
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 271-281).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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