Interoperability of the Voltage/Current Doubler Converter Employing Bipolar Pads with the SAE J2954 VA WPT2/Z2 for EV Wireless Charging

Francesca Grazian; Thiago Batista Soeiro; Pavol Bauer

doi:10.1109/PEMC51159.2022.9962951

Interoperability of the Voltage/Current Doubler Converter Employing Bipolar Pads with the SAE J2954 VA WPT2/Z2 for EV Wireless Charging

Francesca Grazian, 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 investigates the interoperability of the proposed voltage/current doubler (V/I-D) converter used for wireless charging of electric vehicles (EVs), which achieves high efficiency when charging both 400V and 800V batteries at the same power. Nominally, the V/I-D converter employs bipolar pads (BPP) at both the primary and the secondary circuits. In this study, the functionality of the converter is assessed when the primary BPP is coupled with a standard secondary coil, here being the VA test station WPT2/Z2 from SAE J2954. First, the intended operation of the V/I- D converter is explained. After that, the equivalent circuit of the BPP primary coupled with the standardized secondary coil is modeled analytically. The operation based on the misalignment is discussed. Then, the interoperability is verified through experimental results for the entire constant current charging mode for a rated output power of 7.2kW. Even though the functionality of the V/I-D converter is not optimal during the interoperability, the measured DC-to-DC power transfer efficiency in the considered operating range reaches the maximum at 95.22%, while the minimum is 92.86%.

Original language	English
Title of host publication	Proceedings of the 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC)
Publisher	IEEE
Pages	346-352
Number of pages	7
ISBN (Electronic)	978-1-6654-9681-0
ISBN (Print)	978-1-6654-9682-7
DOIs	https://doi.org/10.1109/PEMC51159.2022.9962951
Publication status	Published - 2022
Event	2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC) - Brasov, Romania Duration: 25 Sept 2022 → 28 Sept 2022 Conference number: 20th

Publication series

Name	2022 IEEE 20th International Power Electronics and Motion Control Conference, PEMC 2022

Conference

Conference	2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC)
Country/Territory	Romania
City	Brasov
Period	25/09/22 → 28/09/22

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

Battery voltage
bipolar pads
compensation networks
cross-coupling
electric vehicles
inductive power transfer
interoperability
rectangular coils
wireless charging

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10.1109/PEMC51159.2022.9962951

Interoperability_of_the_Voltage_Current_Doubler_Converter_Employing_Bipolar_Pads_with_the_SAE_J2954_VA_WPT2_Z2_for_EV_Wireless_Charging (1)Final published version, 3.26 MB

Cite this

Grazian, F., Soeiro, T. B., & Bauer, P. (2022). Interoperability of the Voltage/Current Doubler Converter Employing Bipolar Pads with the SAE J2954 VA WPT2/Z2 for EV Wireless Charging. In Proceedings of the 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC) (pp. 346-352). (2022 IEEE 20th International Power Electronics and Motion Control Conference, PEMC 2022). IEEE. https://doi.org/10.1109/PEMC51159.2022.9962951

Grazian, Francesca ; Soeiro, Thiago Batista ; Bauer, Pavol. / Interoperability of the Voltage/Current Doubler Converter Employing Bipolar Pads with the SAE J2954 VA WPT2/Z2 for EV Wireless Charging. Proceedings of the 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC). IEEE, 2022. pp. 346-352 (2022 IEEE 20th International Power Electronics and Motion Control Conference, PEMC 2022).

@inproceedings{fe88eac0df11462e819c66f8740b694d,

title = "Interoperability of the Voltage/Current Doubler Converter Employing Bipolar Pads with the SAE J2954 VA WPT2/Z2 for EV Wireless Charging",

abstract = "This paper investigates the interoperability of the proposed voltage/current doubler (V/I-D) converter used for wireless charging of electric vehicles (EVs), which achieves high efficiency when charging both 400V and 800V batteries at the same power. Nominally, the V/I-D converter employs bipolar pads (BPP) at both the primary and the secondary circuits. In this study, the functionality of the converter is assessed when the primary BPP is coupled with a standard secondary coil, here being the VA test station WPT2/Z2 from SAE J2954. First, the intended operation of the V/I- D converter is explained. After that, the equivalent circuit of the BPP primary coupled with the standardized secondary coil is modeled analytically. The operation based on the misalignment is discussed. Then, the interoperability is verified through experimental results for the entire constant current charging mode for a rated output power of 7.2kW. Even though the functionality of the V/I-D converter is not optimal during the interoperability, the measured DC-to-DC power transfer efficiency in the considered operating range reaches the maximum at 95.22%, while the minimum is 92.86%.",

keywords = "Battery voltage, bipolar pads, compensation networks, cross-coupling, electric vehicles, inductive power transfer, interoperability, rectangular coils, wireless charging",

author = "Francesca Grazian and Soeiro, {Thiago Batista} and Pavol Bauer",

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.; 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC) ; Conference date: 25-09-2022 Through 28-09-2022",

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doi = "10.1109/PEMC51159.2022.9962951",

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Grazian, F, Soeiro, TB & Bauer, P 2022, Interoperability of the Voltage/Current Doubler Converter Employing Bipolar Pads with the SAE J2954 VA WPT2/Z2 for EV Wireless Charging. in Proceedings of the 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC). 2022 IEEE 20th International Power Electronics and Motion Control Conference, PEMC 2022, IEEE, pp. 346-352, 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC), Brasov, Romania, 25/09/22. https://doi.org/10.1109/PEMC51159.2022.9962951

Interoperability of the Voltage/Current Doubler Converter Employing Bipolar Pads with the SAE J2954 VA WPT2/Z2 for EV Wireless Charging. / Grazian, Francesca; Soeiro, Thiago Batista; Bauer, Pavol.
Proceedings of the 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC). IEEE, 2022. p. 346-352 (2022 IEEE 20th International Power Electronics and Motion Control Conference, PEMC 2022).

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

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Grazian F, Soeiro TB, Bauer P. Interoperability of the Voltage/Current Doubler Converter Employing Bipolar Pads with the SAE J2954 VA WPT2/Z2 for EV Wireless Charging. In Proceedings of the 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC). IEEE. 2022. p. 346-352. (2022 IEEE 20th International Power Electronics and Motion Control Conference, PEMC 2022). doi: 10.1109/PEMC51159.2022.9962951

Interoperability of the Voltage/Current Doubler Converter Employing Bipolar Pads with the SAE J2954 VA WPT2/Z2 for EV Wireless Charging

Abstract

Publication series

Conference

Bibliographical note

Keywords

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