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3D inductive power transfer power system

Published online by Cambridge University Press:  03 April 2014

Pratik Raval ,
Dariusz Kacprzak  and
Aiguo P. Hu
Pratik Raval*
Affiliation:
Department of Electrical and Computer Engineering, The University of Auckland, Auckland, New Zealand
Dariusz Kacprzak
Affiliation:
Department of Electrical and Computer Engineering, The University of Auckland, Auckland, New Zealand
Aiguo P. Hu
Affiliation:
Department of Electrical and Computer Engineering, The University of Auckland, Auckland, New Zealand
*
Corresponding author P. Raval Email: [email protected]
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Abstract

To date, the technique of inductive power transfer has found applications in industry including two-dimensional battery charging. However, this restricts any load to planar movements. This paper proposes custom designed magnetic structures of a loosely magnetically coupled three-dimensional inductive power transfer system. This is done via computational software utilizing the finite-element-method. More specifically, single-phase and multi-phase primary magnetic structures are proposed to distribute a power transfer window along three orthogonal axes. Next, a secondary magnetic structure is custom designed to induce electromotive force in three-dimensions. The proposed system is simulated to demonstrate power transfer for charging an AA-battery cell. Finally, the thermal effects upon the secondary load are considered.

Keywords

Electromagnetic inductionMagneticsFinite element analysis
Type
Research Article
Information
Wireless Power Transfer , Volume 1 , Issue 1 , March 2014 , pp. 51 - 64
Copyright
Copyright © Cambridge University Press 2014 

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