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Energies 2017, 10(6), 774; doi:10.3390/en10060774

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
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”.
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Academic Editor: Sheldon S. Williamson
Received: 27 April 2017 / Revised: 25 May 2017 / Accepted: 30 May 2017 / Published: 3 June 2017
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Abstract

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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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

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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