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Abstract
Printed circuit board (PCB) coils have been pro- posed prior for implementation as inductive wireless charging coils to minimize size and cost. Utilization of PCBs can allow for a reduced cost, improved manufacturability, and a wide range of geometric customization options. To circumvent material limitations on insulation and thermal performance, parallel paths can be implemented to divide the current per path accordingly. Within this paper, an unconventional high power PCB coil is designed employing all possible techniques for wiring with axial and radial parallel paths with equivalent transposition to minimize circulating currents. Design studies are simulated in 3D finite element analysis (FEA) to evaluate imbalance between phases with and without transposition. Two experimental prototype coils were fabricated with measurements for self-inductance and mutual inductance between phases. These measurements were validated to be sufficiently consistent with FEA results. Additionally, a method is proposed for a two-step optimization of coupling coefficient and coil losses.
Document Type
Conference Proceeding
Publication Date
10-2024
Digital Object Identifier (DOI)
doi: 10.1109/ECCE55643.2024.10861335
Repository Citation
Lewis, Donovin D.; Gastineau, Lucas; Onar, Omer; McCulloch, Malcolm; Eastham, John F.; and Ionel, Dan M., "Design of High-Power Polyphase PCB Coil Systems for Wireless Power Transfer" (2024). Electrical and Computer Engineering Graduate Research. 56.
https://uknowledge.uky.edu/ece_gradpub/56
