Thermal analysis of a 50 kW three-phase wireless charging system

Mostak Mohammad; Omer C. Onar; Jason L. Pries; Veda P. Galigekere; Gui Jia Su; Jonathan Wilkins

doi:10.1109/ITEC51675.2021.9490053

Thermal analysis of a 50 kW three-phase wireless charging system

Mostak Mohammad, Omer C. Onar, Jason L. Pries, Veda P. Galigekere, Gui Jia Su, Jonathan Wilkins

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

15 Scopus citations

Abstract

In this paper, the thermal analysis of a 50 kW three-phase wireless charging system (WCS) is presented. Addressing the thermal challenge is essential for designing a compact charging pad for 50 kW and higher-power WCS pads. Low thermal conductivity of the Litz wire and ferrite, and uneven distribution of the coil, and core loss cause the high temperature in the charging pads. In this paper, the loss distribution of a 50 kW three-phase WCS is investigated, and the temperature distribution is simulated using finite element analysis (FEA) considering the magnetic and non-magnetic materials of a charging pad. The thermal characteristics of an extremely high-power density 50 kW WCS prototype are tested experimentally for 10 minutes of operation. The simulation and experimental results show that the coil temperature increases to 65°C, the core temperature varies between 50°C to 150°C, and the packaging temperature increases to 65°C after 10 minutes of operation at rated 50 kW output power.

Original language	English
Title of host publication	2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1-6
Number of pages	6
ISBN (Electronic)	9781728175836
DOIs	https://doi.org/10.1109/ITEC51675.2021.9490053
State	Published - Jun 21 2021
Event	2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021 - Chicago, United States Duration: Jun 21 2021 → Jun 25 2021

Publication series

Name	2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021

Conference

Conference	2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021
Country/Territory	United States
City	Chicago
Period	06/21/21 → 06/25/21

Funding

This manuscript has been authored by Oak Ridge National Laboratory, operated by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

Keywords

EMF
Electric vehicle
Inductive charging
Leakage field
Shielding effectiveness

Access to Document

10.1109/ITEC51675.2021.9490053

Cite this

Mohammad, M., Onar, O. C., Pries, J. L., Galigekere, V. P., Su, G. J., & Wilkins, J. (2021). Thermal analysis of a 50 kW three-phase wireless charging system. In 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021 (pp. 1-6). (2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ITEC51675.2021.9490053

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title = "Thermal analysis of a 50 kW three-phase wireless charging system",

abstract = "In this paper, the thermal analysis of a 50 kW three-phase wireless charging system (WCS) is presented. Addressing the thermal challenge is essential for designing a compact charging pad for 50 kW and higher-power WCS pads. Low thermal conductivity of the Litz wire and ferrite, and uneven distribution of the coil, and core loss cause the high temperature in the charging pads. In this paper, the loss distribution of a 50 kW three-phase WCS is investigated, and the temperature distribution is simulated using finite element analysis (FEA) considering the magnetic and non-magnetic materials of a charging pad. The thermal characteristics of an extremely high-power density 50 kW WCS prototype are tested experimentally for 10 minutes of operation. The simulation and experimental results show that the coil temperature increases to 65°C, the core temperature varies between 50°C to 150°C, and the packaging temperature increases to 65°C after 10 minutes of operation at rated 50 kW output power.",

keywords = "EMF, Electric vehicle, Inductive charging, Leakage field, Shielding effectiveness",

author = "Mostak Mohammad and Onar, {Omer C.} and Pries, {Jason L.} and Galigekere, {Veda P.} and Su, {Gui Jia} and Jonathan Wilkins",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021 ; Conference date: 21-06-2021 Through 25-06-2021",

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Mohammad, M , Onar, OC, Pries, JL, Galigekere, VP, Su, GJ & Wilkins, J 2021, Thermal analysis of a 50 kW three-phase wireless charging system. in 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021. 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021, Institute of Electrical and Electronics Engineers Inc., pp. 1-6, 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021, Chicago, United States, 06/21/21. https://doi.org/10.1109/ITEC51675.2021.9490053

Thermal analysis of a 50 kW three-phase wireless charging system. / Mohammad, Mostak ; Onar, Omer C.; Pries, Jason L. et al.
2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021. Institute of Electrical and Electronics Engineers Inc., 2021. p. 1-6 (2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021).

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

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AU - Mohammad, Mostak

AU - Onar, Omer C.

AU - Pries, Jason L.

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AU - Su, Gui Jia

AU - Wilkins, Jonathan

PY - 2021/6/21

Y1 - 2021/6/21

N2 - In this paper, the thermal analysis of a 50 kW three-phase wireless charging system (WCS) is presented. Addressing the thermal challenge is essential for designing a compact charging pad for 50 kW and higher-power WCS pads. Low thermal conductivity of the Litz wire and ferrite, and uneven distribution of the coil, and core loss cause the high temperature in the charging pads. In this paper, the loss distribution of a 50 kW three-phase WCS is investigated, and the temperature distribution is simulated using finite element analysis (FEA) considering the magnetic and non-magnetic materials of a charging pad. The thermal characteristics of an extremely high-power density 50 kW WCS prototype are tested experimentally for 10 minutes of operation. The simulation and experimental results show that the coil temperature increases to 65°C, the core temperature varies between 50°C to 150°C, and the packaging temperature increases to 65°C after 10 minutes of operation at rated 50 kW output power.

AB - In this paper, the thermal analysis of a 50 kW three-phase wireless charging system (WCS) is presented. Addressing the thermal challenge is essential for designing a compact charging pad for 50 kW and higher-power WCS pads. Low thermal conductivity of the Litz wire and ferrite, and uneven distribution of the coil, and core loss cause the high temperature in the charging pads. In this paper, the loss distribution of a 50 kW three-phase WCS is investigated, and the temperature distribution is simulated using finite element analysis (FEA) considering the magnetic and non-magnetic materials of a charging pad. The thermal characteristics of an extremely high-power density 50 kW WCS prototype are tested experimentally for 10 minutes of operation. The simulation and experimental results show that the coil temperature increases to 65°C, the core temperature varies between 50°C to 150°C, and the packaging temperature increases to 65°C after 10 minutes of operation at rated 50 kW output power.

KW - EMF

KW - Electric vehicle

KW - Inductive charging

KW - Leakage field

KW - Shielding effectiveness

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ER -

Mohammad M , Onar OC, Pries JL, Galigekere VP, Su GJ , Wilkins J. Thermal analysis of a 50 kW three-phase wireless charging system. In 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021. Institute of Electrical and Electronics Engineers Inc. 2021. p. 1-6. (2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021). doi: 10.1109/ITEC51675.2021.9490053

Thermal analysis of a 50 kW three-phase wireless charging system

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Keywords

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