Electric Vehicle Charging Based on Inductive Power Transfer Employing Variable Compensation Capacitance for Optimum Load Matching

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

doi:10.1109/IECON43393.2020.9254920

Electric Vehicle Charging Based on Inductive Power Transfer Employing Variable Compensation Capacitance for Optimum Load Matching

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

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

6 Citations (Scopus)

Abstract

In inductive power transfer applications, it is possible to ensure high efficiency of the main coils by operating at the optimum load. Since the optimum load depends on the coupling between the main coils, the operation needs to be adapted to match this case at different alignment conditions. This paper proposes a method to keep the optimum load constant by varying the natural resonant frequency of both the primary and secondary circuits of a S-S compensation network. This is possible by changing the value of the compensation capacitors at different alignments. This strategy differs from the ones found in the literature, where the input and the output voltage are changed to always match the optimum load. The proposed concept is proven through circuit simulations of an 11 kW EV battery charging system, and several strategies for the implementation of the variable capacitance are discussed.

Original language	English
Title of host publication	Proceedings - IECON 2020
Subtitle of host publication	46th Annual Conference of the IEEE Industrial Electronics Society
Publisher	IEEE
Pages	5262-5267
Number of pages	6
ISBN (Electronic)	978-1-7281-5414-5
ISBN (Print)	978-1-7281-5415-2, 978-1-7281-5413-8 (USB)
DOIs	https://doi.org/10.1109/IECON43393.2020.9254920
Publication status	Published - 21 Oct 2020
Externally published	Yes
Event	46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020 - Singapore, Virtual, Singapore, Singapore Duration: 19 Oct 2020 → 21 Oct 2020 Conference number: 46

Publication series

Name	46th Annual Conference of the IEEE Industrial Electronics Society (IECON)
Publisher	IEEE
Number	46
Volume	2020
ISSN (Print)	1553-572X
ISSN (Electronic)	2577-1647

Conference

Conference	46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020
Abbreviated title	IECON 2020
Country/Territory	Singapore
City	Virtual, Singapore
Period	19/10/20 → 21/10/20

Keywords

Coils
Voltage control
Inductive charging
Couplings
Capacitors
Resonant frequency
Power generation
n/a OA procedure

UN SDGs

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

Access to Document

10.1109/IECON43393.2020.9254920

Cite this

Grazian, F., Shi, W., Soeiro, T. B., Dong, J., & Bauer, P. (2020). Electric Vehicle Charging Based on Inductive Power Transfer Employing Variable Compensation Capacitance for Optimum Load Matching. In Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society (pp. 5262-5267). Article 9254920 (46th Annual Conference of the IEEE Industrial Electronics Society (IECON); Vol. 2020, No. 46). IEEE. https://doi.org/10.1109/IECON43393.2020.9254920

Grazian, Francesca ; Shi, Wenli ; Soeiro, Thiago Batista et al. / Electric Vehicle Charging Based on Inductive Power Transfer Employing Variable Compensation Capacitance for Optimum Load Matching. Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2020. pp. 5262-5267 (46th Annual Conference of the IEEE Industrial Electronics Society (IECON); 46).

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title = "Electric Vehicle Charging Based on Inductive Power Transfer Employing Variable Compensation Capacitance for Optimum Load Matching",

abstract = "In inductive power transfer applications, it is possible to ensure high efficiency of the main coils by operating at the optimum load. Since the optimum load depends on the coupling between the main coils, the operation needs to be adapted to match this case at different alignment conditions. This paper proposes a method to keep the optimum load constant by varying the natural resonant frequency of both the primary and secondary circuits of a S-S compensation network. This is possible by changing the value of the compensation capacitors at different alignments. This strategy differs from the ones found in the literature, where the input and the output voltage are changed to always match the optimum load. The proposed concept is proven through circuit simulations of an 11 kW EV battery charging system, and several strategies for the implementation of the variable capacitance are discussed.",

keywords = "Coils, Voltage control, Inductive charging, Couplings, Capacitors, Resonant frequency, Power generation, n/a OA procedure",

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

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020, IECON 2020 ; Conference date: 19-10-2020 Through 21-10-2020",

year = "2020",

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Grazian, F, Shi, W, Soeiro, TB, Dong, J & Bauer, P 2020, Electric Vehicle Charging Based on Inductive Power Transfer Employing Variable Compensation Capacitance for Optimum Load Matching. in Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society., 9254920, 46th Annual Conference of the IEEE Industrial Electronics Society (IECON), no. 46, vol. 2020, IEEE, pp. 5262-5267, 46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020, Virtual, Singapore, Singapore, 19/10/20. https://doi.org/10.1109/IECON43393.2020.9254920

Electric Vehicle Charging Based on Inductive Power Transfer Employing Variable Compensation Capacitance for Optimum Load Matching. / Grazian, Francesca; Shi, Wenli; Soeiro, Thiago Batista et al.
Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2020. p. 5262-5267 9254920 (46th Annual Conference of the IEEE Industrial Electronics Society (IECON); Vol. 2020, No. 46).

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

TY - GEN

T1 - Electric Vehicle Charging Based on Inductive Power Transfer Employing Variable Compensation Capacitance for Optimum Load Matching

AU - Grazian, Francesca

AU - Shi, Wenli

AU - Soeiro, Thiago Batista

AU - Dong, Jianning

AU - Bauer, Pavol

N1 - Conference code: 46

PY - 2020/10/21

Y1 - 2020/10/21

N2 - In inductive power transfer applications, it is possible to ensure high efficiency of the main coils by operating at the optimum load. Since the optimum load depends on the coupling between the main coils, the operation needs to be adapted to match this case at different alignment conditions. This paper proposes a method to keep the optimum load constant by varying the natural resonant frequency of both the primary and secondary circuits of a S-S compensation network. This is possible by changing the value of the compensation capacitors at different alignments. This strategy differs from the ones found in the literature, where the input and the output voltage are changed to always match the optimum load. The proposed concept is proven through circuit simulations of an 11 kW EV battery charging system, and several strategies for the implementation of the variable capacitance are discussed.

AB - In inductive power transfer applications, it is possible to ensure high efficiency of the main coils by operating at the optimum load. Since the optimum load depends on the coupling between the main coils, the operation needs to be adapted to match this case at different alignment conditions. This paper proposes a method to keep the optimum load constant by varying the natural resonant frequency of both the primary and secondary circuits of a S-S compensation network. This is possible by changing the value of the compensation capacitors at different alignments. This strategy differs from the ones found in the literature, where the input and the output voltage are changed to always match the optimum load. The proposed concept is proven through circuit simulations of an 11 kW EV battery charging system, and several strategies for the implementation of the variable capacitance are discussed.

KW - Coils

KW - Voltage control

KW - Inductive charging

KW - Couplings

KW - Capacitors

KW - Resonant frequency

KW - Power generation

KW - n/a OA procedure

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DO - 10.1109/IECON43393.2020.9254920

M3 - Conference contribution

SN - 978-1-7281-5415-2

SN - 978-1-7281-5413-8 (USB)

T3 - 46th Annual Conference of the IEEE Industrial Electronics Society (IECON)

SP - 5262

EP - 5267

BT - Proceedings - IECON 2020

PB - IEEE

T2 - 46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020

Y2 - 19 October 2020 through 21 October 2020

ER -

Grazian F, Shi W, Soeiro TB, Dong J, Bauer P. Electric Vehicle Charging Based on Inductive Power Transfer Employing Variable Compensation Capacitance for Optimum Load Matching. In Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society. IEEE. 2020. p. 5262-5267. 9254920. (46th Annual Conference of the IEEE Industrial Electronics Society (IECON); 46). doi: 10.1109/IECON43393.2020.9254920

Electric Vehicle Charging Based on Inductive Power Transfer Employing Variable Compensation Capacitance for Optimum Load Matching

Abstract

Publication series

Conference

Keywords

UN SDGs

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