Date of Award
2018
Publisher
North Dakota State University
Document Type
Thesis
Degree Awarded
Master of Science (MS)
Program
Electrical and Computer Engineering
Department
Electrical and Computer Engineering
College
Engineering
Faculty Advisor
Cao, Dong
Description
With the rise in demand for electric vehicles increasing, the need for high efficiency electrification systems is in high demand. One challenge is keeping full output power to the electric drives as the vehicle battery drops. This thesis presents a GaN based three-phase semi-quasi-z-source boost inverter that can produce twice the output voltage of a traditional inverter without the need for a boost converter stage. This single stage approach is great when the AC output voltage is relatively low. A second approach presented in this paper is a novel GaN based composite boost converter topology which is made up of a very efficient unregulated converter topology with an integrated partial power voltage regulation stage. This approach offers the benefits of very high efficiency from the unregulated converter stage and the regulated output voltage with the voltage regulation stage. This design can offer an estimated efficiency up to 98.6%.
Recommended Citation
Johnson, Jalen Craig, "High Power Density GaN Based Boost Inverter and Resonant Modular Multilevel Boost Converter for Automotive Applications" (2018). Electrical and Computer Engineering. 29.
https://digitalcommons.ndsu.edu/elec-comp-eng/29
Rights
NDSU Policy 190.6.2
Rights Link
https://www.ndsu.edu/fileadmin/policy/190.pdf
Handle Identifier
https://hdl.handle.net/10365/28778