Computationally efficient design and implementation of sic mosfet models in spice

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dc.contributor Kisacikoglu, Mithat C.
dc.contributor Olejniczak, Kraig J.
dc.contributor Brovont, Aaron D.
dc.contributor Freeborn, Todd J.
dc.contributor.advisor Lemmon, Andrew N.
dc.contributor.author Nelson, Blake Whitmore
dc.date.accessioned 2021-05-12T16:28:10Z
dc.date.available 2021-05-12T16:28:10Z
dc.date.issued 2020-12
dc.identifier.other u0015_0000001_0003691
dc.identifier.other Nelson_alatus_0004D_13243
dc.identifier.uri http://ir.ua.edu/handle/123456789/7634
dc.description Electronic Thesis or Dissertation
dc.description.abstract Transient simulation of complex converter topologies is a challenging problem, especially in detailed analysis tools like SPICE. Much of the recent literature on SPICE transistor modeling ignores the requirements of application designers and instead emphasizes detail, physical accuracy, and complexity. While these advancements greatly improve model fidelity, they also serve to increase computational complexity, making the resulting models less attractive to application designers. This is in part because transistor models presented for SPICE are generally evaluated by accuracy alone, without consideration for the computational cost of model elements. Models designers tend to optimize toward the metrics by which their work is judged; with little precedent for disclosing computation time in addition to accuracy, the natural outcome is a plethora of highly accurate, detailed models which are less than ideal for complex application simulations. In order to optimize models for such simulations, this dissertation quantifies the relative computational performance of modeling approaches and contextualizes the results with regard to accuracy. This required the development of a new methodology for quantifying model computational performance. An extensive review of the relevant literature is undertaken to select candidate SiC MOSFET models likely to fare well in complex application simulations. By analyzing the accuracy and computational performance tradeoffs of these candidates, new insights into transistor model design and optimization are identified. These insights inform a new SiC MOSFET model synthesized and optimized from the best-of-breed model elements identified. By focusing on retaining high accuracy while making critical performance optimizations, the new model is ideally suited for complex converter simulations.
dc.format.extent 144 p.
dc.format.medium electronic
dc.format.mimetype application/pdf
dc.language English
dc.language.iso en_US
dc.publisher University of Alabama Libraries
dc.relation.ispartof The University of Alabama Electronic Theses and Dissertations
dc.relation.ispartof The University of Alabama Libraries Digital Collections
dc.relation.hasversion born digital
dc.rights All rights reserved by the author unless otherwise indicated.
dc.subject.other Electrical engineering
dc.title Computationally efficient design and implementation of sic mosfet models in spice
dc.type thesis
dc.type text
etdms.degree.department University of Alabama. Department of Electrical and Computer Engineering
etdms.degree.discipline Electrical and Computer Engineering
etdms.degree.grantor The University of Alabama
etdms.degree.level doctoral
etdms.degree.name Ph.D.


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