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Energy Transmission via Coupled Coils

Access Status
Open access
Authors
Howard, Roy
Howard, Ian
Date
2008
Type
Conference Paper

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Citation
Howard, Roy and Howard, Ian. 2008. Energy Transmission via Coupled Coils, in Nagarajan, R. (ed), Curtin University of Technology Science and Engineering International Conference, Nov 24 2008. Miri, Sarawak, Malaysia: Curtin University of Technology, Miri, Sarawak, Malaysia.
Source Title
Proceedings of the Curtin University of Technology Science and Engineering International Conference
Source Conference
Curtin University of Technology Science and Engineering International Conference
ISBN
Faculty
Department of Electrical and Computer Engineering
School of Engineering
Faculty of Science and Engineering
URI
Collection
Abstract

The modelling of a N stage cascade of coupled coils is detailed for the general homogenous case and the specific non-homogenous case associated with energy coupling in joined pipe structures. Consistent with the practical situation, models are developed assuming the coils have different radii and have a lateral offset. A resonant structure, which facilitates energy transmission, is proposed. It is shown that the ability to transfer energy is relatively insensitive to frequency, within a few percent of the resonant frequency, to component tolerance and to load resistance. However, it is shown to be critically dependent on the level of mutual coupling between the two coils. It is practical for energy transmission, at greater than a 10mW level, over 8 stages consistent with a distance of 80m.