Maximising inductive power transmission using a novel analytical coil design approach.
Heidarian, Maryam; Burgess, Samuel J.; Prabhu, Radhakrishna; Fough, Nazila
Samuel J. Burgess
Doctor Radhakrishna Prabhu firstname.lastname@example.org
Miss Nazila Fough email@example.com
Maximising power transfer efficiency (PTE) in resonant inductive power transfer (IPT) systems requires strong coupling between transmitter and receiver coils. In applications where system constraints yield a weak inductive link (e.g. significant distance between coils) or there is a requirement for a specific power level, then geometrically optimising the coils can enhance inductive linkage. To achieve this, a novel coil design method has been presented which provides maximum efficiency for both strongly- and loosely-coupled inductive links. A parameter (i.e. "Strong Coupling Factor") has been introduced to assist the design procedure. Discussing results from a practical 1.06 MHz inductive link - developed using the proposed design method - shows that, with proper selection of strong coupling factor (e.g. C=220), the designed coil geometry can provide maximum PTE of 86%. This is in close correlation (F ≈ 3%) with theoretical analysis using MATLAB.
|Start Date||Jun 18, 2019|
|Publication Date||Dec 31, 2019|
|Publisher||Institute of Electrical and Electronics Engineers|
|Series Title||Wireless power transfer conference proceedings|
|Institution Citation||HEIDARIAN, M., BURGESS, S.J., PRABHU, R. and FOUGH, N. 2019. Maximising inductive power transmission using a novel analytical coil design approach. In Proceedings of the 2019 IEEE MTT-S wireless power transfer conference (WPTC 2019), co-located with the 2019 IEEE PELS workshop on emerging technologies: wireless power (WoW 2019) as part of Wireless power week 2019, 18-21 June 2019, London, UK. New York: IEEE [online], pages 158-161. Available from: https://doi.org/10.1109/WPTC45513.2019.9055553|
|Keywords||Inductive power transfer; Power transfer efficiency; Coil design|
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