Low Frequency Magnetic Fields Emitted by High-Power Charging Systems

Germana Trentadue, Rosanna Pinto, Marco Zanni, Harald Scholz, Konstantinos Pliakostathis and Giorgio Martini
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Germana Trentadue: European Commission, Joint Research Centre (JRC), (VA) 21027 Ispra, Italy
Rosanna Pinto: ENEA Italian National Agency for New Technologies, Energy and Sustainable Economic Development, (RM) 00123 Casaccia, Italy
Marco Zanni: European Commission, Joint Research Centre (JRC), (VA) 21027 Ispra, Italy
Harald Scholz: European Commission, Joint Research Centre (JRC), (VA) 21027 Ispra, Italy
Konstantinos Pliakostathis: European Commission, Joint Research Centre (JRC), (VA) 21027 Ispra, Italy
Giorgio Martini: European Commission, Joint Research Centre (JRC), (VA) 21027 Ispra, Italy

Energies, 2020, vol. 13, issue 7, 1-11

Abstract: The new generation of fast charging systems faces a formidable technological challenge, aiming to drastically reduce the time needed to recharge an electric vehicle as a way to tackle the range anxiety issue. To achieve this, high power (up to 350 kW) is transferred from the grid to the vehicle, leading to potentially high values of low frequency magnetic fields. This study presents the results of measurements of magnetic flux density (B-field) emitted by two different high power charging systems. The electric vehicle used for the recharge was able to digest up to 83 kW of delivered power. The test procedure was designed to identify the locations where the maximum B-field levels were recorded and to measure the exposure indices according to reference levels for general public exposure defined in the Council Recommendation 1999/519/EC. Measurements in close proximity to the power cabinets during the recharge revealed that, at some points, exposure indices were higher than 100%, leading to the identification of a distance from the system components at which the value was lower than the reference level. In the worst case, this distance was 31 cm.

Keywords: electro-mobility; magnetic flux density; high-power charging (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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