Maryam Heidarian
Optimal coil design for maximum power transfer efficiency in resonantly coupled systems.
Heidarian, Maryam; Burgess, Samuel J.; Prabhu, Radhakrishna; Fough, Nazila
Authors
Samuel J. Burgess
Professor Radhakrishna Prabhu r.prabhu@rgu.ac.uk
Professor
Dr Nazila Fough n.fough1@rgu.ac.uk
Lecturer
Abstract
Maintaining maximum power transfer efficiency (PTE) is one of the main challenges in resonant inductive power transfer (IPT) systems. Maximum PTE can be achieved if the coupling between transmitter and receiver coils is strong. One way of achieving this is to geometrically optimise a coil by employing small ohmic resistance combined with high self-inductance. In this paper a design method for an optimum coil geometry which offers maximum PTE has been introduced. The proposed technique, in addition to minimising the system's physical size, provides high level of PTE for both strongly- and loosely-coupled links. A design example for a typical IPT system is presented that shows, with a proper selection of strong coupling factor (e.g.: C = 220.), the designed coil geometry can provide maximum PTE of 95.4% for coupling coefficient K = 1. Also, for a loose inductive link with K = 0.215, maximum calculated and measured PTE values are 89% and 86%, respectively.
Citation
HEIDARIAN, M., BURGESS, S.J., PRABHU, R. and FOUGH, N. 2019. Optimal coil design for maximum power transfer efficiency in resonantly coupled systems. In Proceedings of 2019 United States National Committee for the International Union for Radio Science (USNC-URSI) radio science meeting (URSI 2019), co-located with 2019 Antennas and propagation symposium (AP-S/URSI 2019), 7-12 July 2019, Atlanta, USA. Piscataway: IEEE [online], pages 73-74. Available from: https://doi.org/10.1109/USNC-URSI.2019.8861834
Conference Name | 2019 United States National Committee for the International Union for Radio Science (USNC-URSI) radio science meeting (URSI 2019), co-located with 2019 Antennas and propagation symposium (AP-S/URSI 2019) |
---|---|
Conference Location | Atlanta, USA |
Start Date | Jul 7, 2019 |
End Date | Jul 12, 2019 |
Acceptance Date | Jan 18, 2019 |
Online Publication Date | Oct 10, 2019 |
Publication Date | Oct 10, 2019 |
Deposit Date | Oct 17, 2019 |
Publicly Available Date | Nov 1, 2019 |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 73-74 |
Series ISSN | 2572-3804 |
DOI | https://doi.org/10.1109/usnc-ursi.2019.8861834 |
Keywords | Couplings; Resistance; Geometry; Transmitters; Receivers; Magnetic resonance; Transceivers |
Public URL | https://rgu-repository.worktribe.com/output/674264 |
Files
HEIDARIAN 2019 Optimal coil
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Publisher Licence URL
https://creativecommons.org/licenses/by-nc/4.0/
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