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Abstract
Wireless charging of unmanned ground vehicles and aircraft has been proposed to increase charging reliability and security, allow for autonomous functionality, and either reduce battery size or increase continuous flight time. This paper proposes a three-phase Litz wire primary and a two-phase PCB secondary for high secondary-side power density considering misalignment tolerances, surface and volumetric power density, and coil sizing. Electromagnetic 3D finite element analysis (FEA) simulations are conducted to study variation in mutual inductance and coupling coefficient with different secondary coil sizes and number of turns, horizontal and vertical misalignment between the primary and secondary, and a combination of both for a set of designs with the same rated power. Results indicate that receiver coils of reduced size relative to the primary can deliver rated power for increased power density and higher tolerance to misalignment.
Document Type
Conference Proceeding
Publication Date
Fall 10-2025
Digital Object Identifier (DOI)
10.1109/ECCE58356.2025.11260386
Repository Citation
Gastineau, Lucas A.; Lewis, Donovin D.; Onar, Omer; and Ionel, Dan M., "Multi-phase Wireless Power Transfer with High Power Density Inductive Coils for Electric Drone Charging" (2025). Electrical and Computer Engineering Graduate Research. 21.
https://uknowledge.uky.edu/ece_gradpub/21
Notes/Citation Information
Gastineau, L. A., Lewis, D. D., Onar, O., and Ionel, D. M., "Multi-phase Wireless Power Transfer with High Power Density Inductive Coils for Electric Drone Charging," Proceedings, IEEE Energy Conversion Congress & Expo (ECCE), Philadelphia, PA, doi: 10.1109/ECCE58356.2025.11260386, 5p (Oct 2025)