Load power agnostic 6.6 kW wireless EV charger with LCL tuned primary and secondary side regulation

Veda P. Galigekere; Omer C. Onar; Madhu Chinthavali; Zhiqiang Wang

doi:10.1109/ECCE.2017.8096822

Load power agnostic 6.6 kW wireless EV charger with LCL tuned primary and secondary side regulation

Veda P. Galigekere, Omer C. Onar, Madhu Chinthavali, Zhiqiang Wang

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

14 Scopus citations

Abstract

Wireless charging of electric vehicles (EVs) is going to play a major role in electrification of transportation. This paper proposes to utilize an LCL tuned primary and series tuned secondary with a secondary buck regulator to achieve power transfer control by secondary side control only. Analytical expressions for base (primary) coil current and transformer turns ratio N required to transfer the required power at a certain input voltage is calculated for a given coil set. The required parameters are calculated for a 6.6 kW wireless charging system with a matched circular coil set. The proposed control scheme and analysis were validated through Saber Sketch simulations and by a 6.6 kW laboratory prototype. Experimental results for different load power settings at voltages of 290 V, 340 V, and 370 V are presented.

Original language	English
Title of host publication	2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	4839-4844
Number of pages	6
ISBN (Electronic)	9781509029983
DOIs	https://doi.org/10.1109/ECCE.2017.8096822
State	Published - Nov 3 2017
Event	9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, United States Duration: Oct 1 2017 → Oct 5 2017

Publication series

Name	2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Volume	2017-January

Conference

Conference	9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
Country/Territory	United States
City	Cincinnati
Period	10/1/17 → 10/5/17

Funding

This study is based upon work supported by the U.S. Department of Energy (DOE), Vehicle Technologies Office (VTO). Authors would like to thank Mr. Lee Slezak of U.S. DOE- VTO, Mr. Jason Conley of National Energy Technology Laboratory (NETL), and Dr. David Smith and Dr. Burak Ozpineci of ORNL for their support and guidance on this work.

Keywords

Electromagnetic induction
Inductive charging
LCL resonant tuning
Resonance
Secondary side regulation
Wireless charging
Wireless power transfer

Access to Document

10.1109/ECCE.2017.8096822

Cite this

Galigekere, V. P., Onar, O. C., Chinthavali, M., & Wang, Z. (2017). Load power agnostic 6.6 kW wireless EV charger with LCL tuned primary and secondary side regulation. In 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017 (pp. 4839-4844). Article 8096822 (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017; Vol. 2017-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2017.8096822

Galigekere, Veda P. ; Onar, Omer C. ; Chinthavali, Madhu et al. / Load power agnostic 6.6 kW wireless EV charger with LCL tuned primary and secondary side regulation. 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 4839-4844 (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017).

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title = "Load power agnostic 6.6 kW wireless EV charger with LCL tuned primary and secondary side regulation",

abstract = "Wireless charging of electric vehicles (EVs) is going to play a major role in electrification of transportation. This paper proposes to utilize an LCL tuned primary and series tuned secondary with a secondary buck regulator to achieve power transfer control by secondary side control only. Analytical expressions for base (primary) coil current and transformer turns ratio N required to transfer the required power at a certain input voltage is calculated for a given coil set. The required parameters are calculated for a 6.6 kW wireless charging system with a matched circular coil set. The proposed control scheme and analysis were validated through Saber Sketch simulations and by a 6.6 kW laboratory prototype. Experimental results for different load power settings at voltages of 290 V, 340 V, and 370 V are presented.",

keywords = "Electromagnetic induction, Inductive charging, LCL resonant tuning, Resonance, Secondary side regulation, Wireless charging, Wireless power transfer",

author = "Galigekere, {Veda P.} and Onar, {Omer C.} and Madhu Chinthavali and Zhiqiang Wang",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 ; Conference date: 01-10-2017 Through 05-10-2017",

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Galigekere, VP, Onar, OC , Chinthavali, M & Wang, Z 2017, Load power agnostic 6.6 kW wireless EV charger with LCL tuned primary and secondary side regulation. in 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017., 8096822, 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017, vol. 2017-January, Institute of Electrical and Electronics Engineers Inc., pp. 4839-4844, 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017, Cincinnati, United States, 10/1/17. https://doi.org/10.1109/ECCE.2017.8096822

Load power agnostic 6.6 kW wireless EV charger with LCL tuned primary and secondary side regulation. / Galigekere, Veda P.; Onar, Omer C.; Chinthavali, Madhu et al.
2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 4839-4844 8096822 (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017; Vol. 2017-January).

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

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T1 - Load power agnostic 6.6 kW wireless EV charger with LCL tuned primary and secondary side regulation

AU - Galigekere, Veda P.

AU - Onar, Omer C.

AU - Chinthavali, Madhu

AU - Wang, Zhiqiang

PY - 2017/11/3

Y1 - 2017/11/3

N2 - Wireless charging of electric vehicles (EVs) is going to play a major role in electrification of transportation. This paper proposes to utilize an LCL tuned primary and series tuned secondary with a secondary buck regulator to achieve power transfer control by secondary side control only. Analytical expressions for base (primary) coil current and transformer turns ratio N required to transfer the required power at a certain input voltage is calculated for a given coil set. The required parameters are calculated for a 6.6 kW wireless charging system with a matched circular coil set. The proposed control scheme and analysis were validated through Saber Sketch simulations and by a 6.6 kW laboratory prototype. Experimental results for different load power settings at voltages of 290 V, 340 V, and 370 V are presented.

AB - Wireless charging of electric vehicles (EVs) is going to play a major role in electrification of transportation. This paper proposes to utilize an LCL tuned primary and series tuned secondary with a secondary buck regulator to achieve power transfer control by secondary side control only. Analytical expressions for base (primary) coil current and transformer turns ratio N required to transfer the required power at a certain input voltage is calculated for a given coil set. The required parameters are calculated for a 6.6 kW wireless charging system with a matched circular coil set. The proposed control scheme and analysis were validated through Saber Sketch simulations and by a 6.6 kW laboratory prototype. Experimental results for different load power settings at voltages of 290 V, 340 V, and 370 V are presented.

KW - Electromagnetic induction

KW - Inductive charging

KW - LCL resonant tuning

KW - Resonance

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T3 - 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017

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BT - 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017

PB - Institute of Electrical and Electronics Engineers Inc.

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Galigekere VP, Onar OC , Chinthavali M, Wang Z. Load power agnostic 6.6 kW wireless EV charger with LCL tuned primary and secondary side regulation. In 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 4839-4844. 8096822. (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017). doi: 10.1109/ECCE.2017.8096822

Load power agnostic 6.6 kW wireless EV charger with LCL tuned primary and secondary side regulation

Abstract

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Funding

Keywords

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