Date of Award:

8-2026

Document Type:

Dissertation

Degree Name:

Doctor of Philosophy (PhD)

Department:

Electrical and Computer Engineering

Committee Chair(s)

Regan Zane

Committee

Regan Zane

Committee

Abhilash Kamineni

Committee

Dragan Maksimovic

Committee

Hongjie Wang

Committee

Nick Roberts

Abstract

With increasing demand for wireless power transfer systems from phone charging and medical devices, in-motion wireless charging of electric vehicles offers a unique advantage of charging the vehicle while in motion on an electrified roadway. Compared to the stationary or wired charging, electric vehicle users can significantly save time and cost with a reduction in the battery size. However, with large-scale infrastructure required for a wireless charging roadway and the driver’s ability to align with the electrified roadway, come significant challenges for the practical implementation of in-motion wireless charging systems.This dissertation aims to solve some of the problems associated with high-power in-motion wireless charging systems.

First, for the practical implementation of large-scale in-motion wireless charging systems, mathematical models and loss comparisons are provided for DC current- and voltage-distribution architectures for deciding the architecture to be efficiently utilized depending on traffic conditions. Second, to prevent the power loss and efficiency when the driver is not perfectly aligned with the wireless charging roadway, an efficient power converter and control scheme are designed to maintain constant power with misalignment up to a certain level. Third, to further reduce the system’s complexity and cost for maintaining nearly constant power with misalignment, a novel design methodology called parallel resonant series-series (PRSS) tuning is proposed.

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