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Wireless power transfer (WPT) system for an electric vehicle (EV): how to shield the car from the magnetic field generated by two planar coils

Published online by Cambridge University Press:  27 November 2017

Tommaso Campi ,
Silvano Cruciani ,
Valerio De Santis ,
Francesca Maradei  and
Mauro Feliziani
Tommaso Campi*
Affiliation:
Department of Industrial and Information Engineering and Economics, University of L'Aquila, L'Aquila, Italy
Silvano Cruciani
Affiliation:
Department of Industrial and Information Engineering and Economics, University of L'Aquila, L'Aquila, Italy
Valerio De Santis
Affiliation:
Department of Industrial and Information Engineering and Economics, University of L'Aquila, L'Aquila, Italy
Francesca Maradei
Affiliation:
Department of Astronautics, Electrical and Energetic Engineering, Sapienza University of Roma, Roma, Italy
Mauro Feliziani
Affiliation:
Department of Industrial and Information Engineering and Economics, University of L'Aquila, L'Aquila, Italy
*
Corresponding author: T. Campi Email: tommaso.campi8888@gmail.com
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Abstract

This paper deals with the shielding of the magnetic field generated by two planar coils of a wireless power transfer (WPT) system at the frequency of tens of kilohertz used in automotive applications. Different shielding techniques using conductive and magnetic materials are examined and discussed highlighting strong and weak points of each other. Finally, the proposed shielding configuration consisting of a combined conductive and magnetic material is applied to model an electric vehicle equipped with a WPT charging system. With this configuration, compliance with the electromagnetic field safety standards can be achieved inside (passengers) or near (pedestrian) the car.

Keywords

Wireless power transferelectric vehicle (EV)magnetic fieldinductive coupling
Type
Research Article
Information
Wireless Power Transfer , Volume 5 , Issue 1 , March 2018 , pp. 1 - 8
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Copyright
Copyright © Cambridge University Press 2017 

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References

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