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

DC systems, Energy conversion & Storage

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

5 Citations (Scopus)

52 Downloads (Pure)

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	IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society
Subtitle of host publication	Proceedings
Place of Publication	Piscataway
Publisher	IEEE
Pages	5262 - 5267
Number of pages	6
ISBN (Electronic)	978-1-7281-5414-5
ISBN (Print)	978-1-7281-5415-2
DOIs	https://doi.org/10.1109/IECON43393.2020.9254920
Publication status	Published - 2020
Event	The 46th Annual Conference of the IEEE Industrial Electronics Society : IECON 2020 - Singapore, Singapore Duration: 18 Oct 2020 → 21 Oct 2020 https://www.iecon2020.org/

Conference

Conference	The 46th Annual Conference of the IEEE Industrial Electronics Society
Country/Territory	Singapore
City	Singapore
Period	18/10/20 → 21/10/20
Internet address	https://www.iecon2020.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

Electric vehicles
inductive power transfer
optimum load matching
variable capacitance
wireless charging

Access to Document

10.1109/IECON43393.2020.9254920

Electric_Vehicle_Charging_Based_on_Inductive_Power_Transfer_Employing_Variable_Compensation_Capacitance_for_Optimum_Load_MatchingFinal published version, 879 KB

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 IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society: Proceedings (pp. 5262 - 5267). Article 9254920 IEEE. https://doi.org/10.1109/IECON43393.2020.9254920

@inproceedings{6bd0fae4ebc1445989ddf89f84d9592d,

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 = "Electric vehicles, inductive power transfer, optimum load matching, variable capacitance, wireless charging",

author = "Francesca Grazian and Wenli Shi and Soeiro, {Thiago Batista} and Jianning Dong 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.; The 46th Annual Conference of the IEEE Industrial Electronics Society : IECON 2020 ; Conference date: 18-10-2020 Through 21-10-2020",

year = "2020",

doi = "10.1109/IECON43393.2020.9254920",

language = "English",

isbn = "978-1-7281-5415-2",

pages = "5262 -- 5267",

booktitle = "IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society",

publisher = "IEEE",

address = "United States",

url = "https://www.iecon2020.org/",

}

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 IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society: Proceedings., 9254920, IEEE, Piscataway, pp. 5262 - 5267, The 46th Annual Conference of the IEEE Industrial Electronics Society , Singapore, Singapore, 18/10/20. 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.
IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society: Proceedings. Piscataway: IEEE, 2020. p. 5262 - 5267 9254920.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › 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 - 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 - 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 - Electric vehicles

KW - inductive power transfer

KW - optimum load matching

KW - variable capacitance

KW - wireless charging

UR - http://www.scopus.com/inward/record.url?scp=85097736934&partnerID=8YFLogxK

U2 - 10.1109/IECON43393.2020.9254920

DO - 10.1109/IECON43393.2020.9254920

M3 - Conference contribution

SN - 978-1-7281-5415-2

SP - 5262

EP - 5267

BT - IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society

PB - IEEE

CY - Piscataway

T2 - The 46th Annual Conference of the IEEE Industrial Electronics Society

Y2 - 18 October 2020 through 21 October 2020

ER -

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

Abstract

Conference

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this