Analysis of Magnetic Field Emissions in Inductive Power Transfer EV Chargers Following Reference Designs in SAE J2954/2019

Wenli Shi; Francesca Grazian; Jianning Dong; Thiago Batista Soeiro; Pavol Bauer

doi:10.1109/ISCAS45731.2020.9180787

Analysis of Magnetic Field Emissions in Inductive Power Transfer EV Chargers Following Reference Designs in SAE J2954/2019

Wenli Shi, Francesca Grazian, Jianning Dong, Thiago Batista Soeiro, Pavol Bauer

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

This paper aims to investigate the radiated magnetic field by 11 kW inductive power transfer (IPT) systems used for the charging of electric vehicles. Two reference designs suggested by SAE J2954 are studied. Both designs are analysed to obtain the coils winding currents, and 3D FEM models are built in COMSOL without considering the car chassis, which constitutes a conservative approach. The magnetic field intensity at specific distances from the IPT coupler are calculated. Finally, the simulation results are compared with the respective magnetic field limits defined in the international standards SAE J2954, IEC 61980-1 and ICNIRP. The results show that the magnetic field radiations at 10 meters points are significantly lower than the limits established in the SAE J2954, while the emissions at 0.9 meters points are only slightly below the limits defined by ICNIRP.

Original language	English
Title of host publication	2020 IEEE International Symposium on Circuits and Systems (ISCAS)
Publisher	IEEE
Pages	1-5
Number of pages	5
ISBN (Print)	978-1-7281-3320-1
DOIs	https://doi.org/10.1109/ISCAS45731.2020.9180787
Publication status	Published - 14 Oct 2020
Externally published	Yes
Event	52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Virtual Conference, Virtual, Online, Spain Duration: 10 Oct 2020 → 21 Oct 2020 Conference number: 52 https://www.iscas2020.org/

Publication series

Name	IEEE International Symposium on Circuits and Systems (ISCAS)
Publisher	IEEE
Volume	2020
ISSN (Print)	2158-1525

Conference

Conference	52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020
Abbreviated title	ISCAS 2020
Country/Territory	Spain
City	Virtual, Online
Period	10/10/20 → 21/10/20
Internet address	https://www.iscas2020.org/

Keywords

Meters
Solid modeling
Analytical models
Computational modeling
Magnetic fields
Integrated circuit modeling
Standards
n/a OA procedure

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/ISCAS45731.2020.9180787

Cite this

Shi, W., Grazian, F., Dong, J., Soeiro, T. B., & Bauer, P. (2020). Analysis of Magnetic Field Emissions in Inductive Power Transfer EV Chargers Following Reference Designs in SAE J2954/2019. In 2020 IEEE International Symposium on Circuits and Systems (ISCAS) (pp. 1-5). Article 9180787 (IEEE International Symposium on Circuits and Systems (ISCAS); Vol. 2020). IEEE. https://doi.org/10.1109/ISCAS45731.2020.9180787

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title = "Analysis of Magnetic Field Emissions in Inductive Power Transfer EV Chargers Following Reference Designs in SAE J2954/2019",

abstract = "This paper aims to investigate the radiated magnetic field by 11 kW inductive power transfer (IPT) systems used for the charging of electric vehicles. Two reference designs suggested by SAE J2954 are studied. Both designs are analysed to obtain the coils winding currents, and 3D FEM models are built in COMSOL without considering the car chassis, which constitutes a conservative approach. The magnetic field intensity at specific distances from the IPT coupler are calculated. Finally, the simulation results are compared with the respective magnetic field limits defined in the international standards SAE J2954, IEC 61980-1 and ICNIRP. The results show that the magnetic field radiations at 10 meters points are significantly lower than the limits established in the SAE J2954, while the emissions at 0.9 meters points are only slightly below the limits defined by ICNIRP.",

keywords = "Meters, Solid modeling, Analytical models, Computational modeling, Magnetic fields, Integrated circuit modeling, Standards, n/a OA procedure",

author = "Wenli Shi and Francesca Grazian and Jianning Dong and Soeiro, {Thiago Batista} and Pavol Bauer",

year = "2020",

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doi = "10.1109/ISCAS45731.2020.9180787",

language = "English",

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Shi, W, Grazian, F, Dong, J, Soeiro, TB & Bauer, P 2020, Analysis of Magnetic Field Emissions in Inductive Power Transfer EV Chargers Following Reference Designs in SAE J2954/2019. in 2020 IEEE International Symposium on Circuits and Systems (ISCAS)., 9180787, IEEE International Symposium on Circuits and Systems (ISCAS), vol. 2020, IEEE, pp. 1-5, 52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020, Virtual, Online, Spain, 10/10/20. https://doi.org/10.1109/ISCAS45731.2020.9180787

Analysis of Magnetic Field Emissions in Inductive Power Transfer EV Chargers Following Reference Designs in SAE J2954/2019. / Shi, Wenli; Grazian, Francesca; Dong, Jianning et al.
2020 IEEE International Symposium on Circuits and Systems (ISCAS). IEEE, 2020. p. 1-5 9180787 (IEEE International Symposium on Circuits and Systems (ISCAS); Vol. 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Shi, Wenli

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AU - Soeiro, Thiago Batista

AU - Bauer, Pavol

N1 - Conference code: 52

PY - 2020/10/14

Y1 - 2020/10/14

N2 - This paper aims to investigate the radiated magnetic field by 11 kW inductive power transfer (IPT) systems used for the charging of electric vehicles. Two reference designs suggested by SAE J2954 are studied. Both designs are analysed to obtain the coils winding currents, and 3D FEM models are built in COMSOL without considering the car chassis, which constitutes a conservative approach. The magnetic field intensity at specific distances from the IPT coupler are calculated. Finally, the simulation results are compared with the respective magnetic field limits defined in the international standards SAE J2954, IEC 61980-1 and ICNIRP. The results show that the magnetic field radiations at 10 meters points are significantly lower than the limits established in the SAE J2954, while the emissions at 0.9 meters points are only slightly below the limits defined by ICNIRP.

AB - This paper aims to investigate the radiated magnetic field by 11 kW inductive power transfer (IPT) systems used for the charging of electric vehicles. Two reference designs suggested by SAE J2954 are studied. Both designs are analysed to obtain the coils winding currents, and 3D FEM models are built in COMSOL without considering the car chassis, which constitutes a conservative approach. The magnetic field intensity at specific distances from the IPT coupler are calculated. Finally, the simulation results are compared with the respective magnetic field limits defined in the international standards SAE J2954, IEC 61980-1 and ICNIRP. The results show that the magnetic field radiations at 10 meters points are significantly lower than the limits established in the SAE J2954, while the emissions at 0.9 meters points are only slightly below the limits defined by ICNIRP.

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KW - Solid modeling

KW - Analytical models

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ER -

Analysis of Magnetic Field Emissions in Inductive Power Transfer EV Chargers Following Reference Designs in SAE J2954/2019

Abstract

Publication series

Conference

Keywords

UN SDGs

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