Chassis Influence on the Exposure Assessment of a Compact EV during WPT Recharging Operations

In this study, the external magnetic field emitted by a wireless power transfer (WPT) system and the internal electric field induced in human body models during recharging operations of a compact electric vehicle (EV) are evaluated. The magneticfield is calculated with a hybrid scheme coupling the b...

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Main Authors: Valerio De Santis, Luca Giaccone, Fabio Freschi
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Magnetochemistry
Subjects:
Online Access:https://www.mdpi.com/2312-7481/7/2/25
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author Valerio De Santis
Luca Giaccone
Fabio Freschi
author_facet Valerio De Santis
Luca Giaccone
Fabio Freschi
author_sort Valerio De Santis
collection DOAJ
description In this study, the external magnetic field emitted by a wireless power transfer (WPT) system and the internal electric field induced in human body models during recharging operations of a compact electric vehicle (EV) are evaluated. The magneticfield is calculated with a hybrid scheme coupling the boundary element method with the surface impedance boundary conditions in order to fit the multiscale open-boundary characteristics of the problem. A commercial software is then used to perform numerical dosimetry. Specifically, two realistic anatomical models, both in a driving position and in a standing posture, are considered, and the chassis of the EV is modeled either as a currently employed aluminum alloy and as a futuristic carbon fiber composite panel. Aligned and misaligned coil configurations of the WPT system are considered as well. The analysis of the obtained results shows that the International Commission on Non-Ionizing Radiation Protection (ICNIRP) reference levels are exceeded in the driving position, especially for the carbon fiber chassis, whereas the system is compliant with the basic restrictions, at least for the considered scenarios.
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spelling doaj.art-2388f68ea1f74fe7b337fb4ece4723582023-12-03T12:44:33ZengMDPI AGMagnetochemistry2312-74812021-02-01722510.3390/magnetochemistry7020025Chassis Influence on the Exposure Assessment of a Compact EV during WPT Recharging OperationsValerio De Santis0Luca Giaccone1Fabio Freschi2Department of Industrial and Information Engineering and Economics, University of L’Aquila, 67100 L’Aquila, ItalyDipartimento Energia “G. Ferraris”, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129 Torino, ItalyDipartimento Energia “G. Ferraris”, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129 Torino, ItalyIn this study, the external magnetic field emitted by a wireless power transfer (WPT) system and the internal electric field induced in human body models during recharging operations of a compact electric vehicle (EV) are evaluated. The magneticfield is calculated with a hybrid scheme coupling the boundary element method with the surface impedance boundary conditions in order to fit the multiscale open-boundary characteristics of the problem. A commercial software is then used to perform numerical dosimetry. Specifically, two realistic anatomical models, both in a driving position and in a standing posture, are considered, and the chassis of the EV is modeled either as a currently employed aluminum alloy and as a futuristic carbon fiber composite panel. Aligned and misaligned coil configurations of the WPT system are considered as well. The analysis of the obtained results shows that the International Commission on Non-Ionizing Radiation Protection (ICNIRP) reference levels are exceeded in the driving position, especially for the carbon fiber chassis, whereas the system is compliant with the basic restrictions, at least for the considered scenarios.https://www.mdpi.com/2312-7481/7/2/25computational electromagneticselectric vehicleEMF safetylow frequency dosimetrywireless chargingwireless power transfer
spellingShingle Valerio De Santis
Luca Giaccone
Fabio Freschi
Chassis Influence on the Exposure Assessment of a Compact EV during WPT Recharging Operations
Magnetochemistry
computational electromagnetics
electric vehicle
EMF safety
low frequency dosimetry
wireless charging
wireless power transfer
title Chassis Influence on the Exposure Assessment of a Compact EV during WPT Recharging Operations
title_full Chassis Influence on the Exposure Assessment of a Compact EV during WPT Recharging Operations
title_fullStr Chassis Influence on the Exposure Assessment of a Compact EV during WPT Recharging Operations
title_full_unstemmed Chassis Influence on the Exposure Assessment of a Compact EV during WPT Recharging Operations
title_short Chassis Influence on the Exposure Assessment of a Compact EV during WPT Recharging Operations
title_sort chassis influence on the exposure assessment of a compact ev during wpt recharging operations
topic computational electromagnetics
electric vehicle
EMF safety
low frequency dosimetry
wireless charging
wireless power transfer
url https://www.mdpi.com/2312-7481/7/2/25
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