Preprint Article Version 1 This version is not peer-reviewed

A Generic Matrix Method to Model the Magnetics of Multi-Coil Air-Cored IPT Systems

Version 1 : Received: 25 May 2017 / Approved: 26 May 2017 / Online: 26 May 2017 (05:11:53 CEST)

A peer-reviewed article of this Preprint also exists.

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. 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.

Journal reference: Energies 2017, 10, 774
DOI: 10.3390/en10060774

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 utilised to extend the theory to multi-coil geometries such as double circular, double rectangle and double rectangle quadrature assuming linearity of magnetics. 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. Comparison of single-coil and multi-coil shapes considering coupling variation with misalignment, power transferred and maximum efficiency is carried out.

Subject Areas

air-cored; contactless; coupling; inductive power transfer; magnetics; matrix; modelling; multi-coil

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