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Design and Optimization of Overlapping Multiple Coil with High Isolation Characteristics for Spatial Wireless Power Transfer Systems.

Authors :
Na-Rae Kwon
Seong-Hyeop Ahn
Wang-Sang Lee
Source :
Journal of Electromagnetic Engineering & Science; Nov2024, Vol. 24 Issue 6, p641-652, 12p
Publication Year :
2024

Abstract

The paper focuses on three-dimensional (3D) spatial wireless power transfer (WPT) and the challenges of improving the isolation between coils in a multiple-coil system. We analyze the mutual inductance between coils to derive an isolation method and propose a 3D overlapping multiple-coil system with high isolation for spatial WPT systems. Through performance verification, the proposed coils are verified to achieve approximately -20.1 dB isolation and an average power transfer efficiency of approximately 61.5%, even in the presence of angular or lateral misalignments of the receiving coil. This represents an improvement of approximately 41.7% over conventional multiple-coil systems. Therefore, it can be considered a viable solution to address the limitations of degraded power transfer efficiency in WPT systems designed for spatial freedom. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
26717255
Volume :
24
Issue :
6
Database :
Complementary Index
Journal :
Journal of Electromagnetic Engineering & Science
Publication Type :
Academic Journal
Accession number :
181427435
Full Text :
https://doi.org/10.26866/jees.2024.6.r.270