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

DC systems, Energy conversion & Storage

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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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)
Place of Publication	Piscataway
Publisher	IEEE
Pages	1-5
Number of pages	5
ISBN (Electronic)	978-1-7281-3320-1
ISBN (Print)	978-1-7281-3321-8
DOIs	https://doi.org/10.1109/ISCAS45731.2020.9180787
Publication status	Published - 2020
Event	ISCAS 2020: IEEE International Symposium on Circuits and Systems - Sevilla, Spain Duration: 10 Oct 2020 → 21 Oct 2020 https://iscas2020.org/

Conference

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

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

inductive power transfer
magnetic field radiation
reference designs
SAE J2954
ICNIRP
IPT standards

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10.1109/ISCAS45731.2020.9180787

Analysis_of_Magnetic_Field_Emissions_in_Inductive_Power_Transfer_EV_Chargers_Following_Reference_Designs_in_SAE_J2954_2019Final published version, 633 KB

Cite this

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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 = "inductive power transfer, magnetic field radiation, reference designs, SAE J2954, ICNIRP, IPT standards",

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

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.; ISCAS 2020: IEEE International Symposium on Circuits and Systems, ISCAS 2020 ; Conference date: 10-10-2020 Through 21-10-2020",

year = "2020",

doi = "10.1109/ISCAS45731.2020.9180787",

language = "English",

isbn = "978-1-7281-3321-8",

pages = "1--5",

booktitle = "2020 IEEE International Symposium on Circuits and Systems (ISCAS)",

publisher = "IEEE",

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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). IEEE, Piscataway, pp. 1-5, ISCAS 2020: IEEE International Symposium on Circuits and Systems, Sevilla, 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). Piscataway: IEEE, 2020. p. 1-5.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Analysis of Magnetic Field Emissions in Inductive Power Transfer EV Chargers Following Reference Designs in SAE J2954/2019

AU - Shi, Wenli

AU - Grazian, Francesca

AU - Dong, Jianning

AU - Soeiro, Thiago Batista

AU - Bauer, Pavol

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2020

Y1 - 2020

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.

KW - inductive power transfer

KW - magnetic field radiation

KW - reference designs

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KW - ICNIRP

KW - IPT standards

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BT - 2020 IEEE International Symposium on Circuits and Systems (ISCAS)

PB - IEEE

CY - Piscataway

T2 - ISCAS 2020: IEEE International Symposium on Circuits and Systems

Y2 - 10 October 2020 through 21 October 2020

ER -

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

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Keywords

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