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

Campi Tommaso; Cruciani Silvano; De Santis Valerio; Maradei Francesca; Feliziani Mauro; Campi Tommaso; Cruciani Silvano; De Santis Valerio; Maradei Francesca; Feliziani Mauro

doi:10.1017/wpt.2017.17

2018 Volume 5

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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

1.
Department of Industrial and Information Engineering and Economics, University of L'Aquila, L'Aquila, Italy
2.
Department of Astronautics, Electrical and Energetic Engineering, Sapienza University of Roma, Roma, Italy

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Corresponding author: T. Campi Email: tommaso.campi8888@gmail.com

Wireless Power Transfer 2018, 5(1): 1-8 | Cite this article

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.
- Wireless power transfer,
- electric vehicle (EV),
- magnetic field,
- inductive coupling

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Campi T, Cruciani S, De Santis V, Maradei F, Feliziani M. 2018. Wireless power transfer (WPT) system for an electric vehicle (EV): how to shield the car from the magnetic field generated by two planar coils. Wireless Power Transfer 5(1): 1-8 doi: 10.1017/wpt.2017.17

Campi T, Cruciani S, De Santis V, Maradei F, Feliziani M. 2018. Wireless power transfer (WPT) system for an electric vehicle (EV): how to shield the car from the magnetic field generated by two planar coils. Wireless Power Transfer 5(1): 1-8 doi: 10.1017/wpt.2017.17

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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

1.
Department of Industrial and Information Engineering and Economics, University of L'Aquila, L'Aquila, Italy
2.
Department of Astronautics, Electrical and Energetic Engineering, Sapienza University of Roma, Roma, Italy

Corresponding author: T. Campi Email: tommaso.campi8888@gmail.com

Wireless Power Transfer 5, Article number: 10.1017/wpt.2017.17 (2018) | Cite this article

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.

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Cite this article

Campi T, Cruciani S, De Santis V, Maradei F, Feliziani M. 2018. Wireless power transfer (WPT) system for an electric vehicle (EV): how to shield the car from the magnetic field generated by two planar coils. Wireless Power Transfer 5(1): 1-8 doi: 10.1017/wpt.2017.17