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Open AccessFeature PaperArticle

A Generic Matrix Method to Model the Magnetics of Multi-Coil Air-Cored Inductive Power Transfer Systems

Department of Electrical Sustainable Energy, Delft University of Technology (TU Delft), Mekelweg 04, 2628 CD Delft, The Netherlands
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This paper is an extended version of our conference papers “Prasanth, V.; Bandyopadhyay, S.; Bauer, P.;Ferreira, J.A. Analysis and comparison of multi-coil inductive power transfer systems. In Proceedings of the2016 IEEE International Power Electronics and Motion Control Conference (PEMC), Varna, Bulgaria,25–30 September 2016; pp. 993–999” and “Prasanth, V.; Bauer, P.; Ferreira, J.A. A sectional matrix method forIPT coil shape optimization. In Proceedings of the International Conference on Power Electronics and ECCEAsia (ICPE-ECCE Asia), Daejeon, Korea, 5–6 June 2015; pp. 1684–1691”.
Academic Editor: Sheldon S. Williamson
Energies 2017, 10(6), 774; https://doi.org/10.3390/en10060774
Received: 27 April 2017 / Revised: 25 May 2017 / Accepted: 30 May 2017 / Published: 3 June 2017
This paper deals with a generic methodology to evaluate the magnetic parameters of contactless power transfer systems. Neumann’s integral has been used to create a matrix method that can model the magnetics of single coils (circle, square, rectangle). The principle of superposition has been utilized to extend the theory to multi-coil geometries, such as double circular, double rectangle and double rectangle quadrature. Numerical and experimental validation has been performed to validate the analytical models developed. A rigorous application of the analysis has been carried out to study misalignment and hence the efficacy of various geometries to misalignment tolerance. The comparison of single-coil and multi-coil inductive power transfer systems (MCIPT) considering coupling variation with misalignment, power transferred and maximum efficiency is carried out. View Full-Text
Keywords: air-cored; contactless; coupling; inductive power transfer; magnetics; matrix; modeling; multi-coil air-cored; contactless; coupling; inductive power transfer; magnetics; matrix; modeling; multi-coil
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Venugopal, P.; Bandyopadhyay, S.; Bauer, P.; Ferreira, J.A. A Generic Matrix Method to Model the Magnetics of Multi-Coil Air-Cored Inductive Power Transfer Systems. Energies 2017, 10, 774.

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