Date of Award:
12-2025
Document Type:
Dissertation
Degree Name:
Doctor of Philosophy (PhD)
Department:
Electrical and Computer Engineering
Committee Chair(s)
Regan Zane
Committee
Regan Zane
Committee
Dragan Maksimović
Committee
Hongjie Wang
Committee
Jonathan Phillips
Committee
Nicholas Roberts
Abstract
The global effort to reduce greenhouse gas emissions and reliance on fossil fuels has made electric mobility a cornerstone of sustainable transportation. This transition is driving demand for advanced charging infrastructure and more efficient power conversion systems. Power converters play a central role, not only in enabling reliable EV charging but also in integrating renewable energy sources with the grid. Because of the large amount of power involved, these converters must operate efficiently, reliably, and at low cost. Conventional high-power chargers often use two stages of conversion, which are effective but limited by size and energy losses. To overcome these challenges, there is growing interest in single-stage converters that can handle EV charging and grid integration in a more compact and efficient way.
The first part of this research develops an efficient converter designed for wireless EV charging that performs grid interfacing and battery charging in a single stage. The system improves efficiency, enhances grid power quality, enables stable operation, and does not require large passive components. Advanced control and modulation methods are introduced to strengthen the soft-switching performance of the converter, while modeling approaches are developed to support accurate control and reliable operation.
The second part of this work addresses the challenge of limited energy generation capacity as EV adoption grows. A multiport converter system is proposed that allows renewable energy and battery storage to be integrated directly with the grid and charging infrastructure. This system improves energy management, supports grid stability, and demonstrates scalability for higher-power charging. Together, these innovations support the development of faster, more compact, efficient, and reliable EV charging solutions.
Recommended Citation
Zade, Aditya, "Design, Control, And Optimization of Unfolding-Based AC-DC Topologies With Three-Port Resonant Converters for Electric Vehicle Battery Charging Applications" (2025). All Graduate Theses and Dissertations, Fall 2023 to Present. 653.
https://digitalcommons.usu.edu/etd2023/653
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