A study is presented on the magnetic field produced by a wireless power transfer (WPT) system installed in an electric vehicle (EV). The considered WPT charging system operates at the frequency of 85 kHz with an output power of 22 kW. The magnetic field levels are numerically calculated. In the simulations the presence of the conductive bodyshell of the vehicle is taken into account. The magnetic field inside and outside the vehicle is calculated for several scenarios: different battery charging status (i.e., fully discharged, fully charged); coaxial planar coils perfectly aligned or misaligned. The obtained results in terms of magnetic field levels are compared with the ICNIRP 1998 and 2010 reference level. Obtained results demonstrate an exceedance of the reference level when the coils are misaligned only in small areas outside the EVs.

Magnetic field generated by a 22 kW-85 kHz wireless power transfer system for an EV / Campi, T.; Cruciani, S.; Feliziani, M.; Maradei, F.. - 2017-:(2017), pp. 1-6. (Intervento presentato al convegno 2017 AEIT International Annual Conference, AEIT 2017 tenutosi a Cagliari, Italy) [10.23919/AEIT.2017.8240538].

Magnetic field generated by a 22 kW-85 kHz wireless power transfer system for an EV

Cruciani, S.;Maradei, F.
2017

Abstract

A study is presented on the magnetic field produced by a wireless power transfer (WPT) system installed in an electric vehicle (EV). The considered WPT charging system operates at the frequency of 85 kHz with an output power of 22 kW. The magnetic field levels are numerically calculated. In the simulations the presence of the conductive bodyshell of the vehicle is taken into account. The magnetic field inside and outside the vehicle is calculated for several scenarios: different battery charging status (i.e., fully discharged, fully charged); coaxial planar coils perfectly aligned or misaligned. The obtained results in terms of magnetic field levels are compared with the ICNIRP 1998 and 2010 reference level. Obtained results demonstrate an exceedance of the reference level when the coils are misaligned only in small areas outside the EVs.
2017
2017 AEIT International Annual Conference, AEIT 2017
Battery charger; electric vehicle (EV); electromagnetic field (EMF) safety; wireless power transfer (WPT); Energy Engineering and Power Technology; Biomedical Engineering; Renewable Energy, Sustainability and the Environment
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Magnetic field generated by a 22 kW-85 kHz wireless power transfer system for an EV / Campi, T.; Cruciani, S.; Feliziani, M.; Maradei, F.. - 2017-:(2017), pp. 1-6. (Intervento presentato al convegno 2017 AEIT International Annual Conference, AEIT 2017 tenutosi a Cagliari, Italy) [10.23919/AEIT.2017.8240538].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1155998
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