A design methodology for multi-kW, large airgap, MHz frequency, wireless power transfer systems

Seung Hwan Lee; Robert D. Lorenz

doi:10.1109/ECCE.2011.6064242

A design methodology for multi-kW, large airgap, MHz frequency, wireless power transfer systems

Seung Hwan Lee
, Robert D. Lorenz

School of Electrical and Computer Engineering

University of Wisconsin-Madison

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

42 Scopus citations

Abstract

In a loosely coupled kW level wireless power transfer system, it is difficult to consider multiple design considerations simultaneously because of the system complexity. Circuit design methodology is critical to achieve efficient, low VA rating, and stable system. In this paper, a design methodology for a loosely coupled series-parallel resonant system is proposed. Proposed design methodology is evaluated by a 3kW, 30cm distance power transfer design example. Using the methodology, efficiency, VA rating, stability, and safety issues are considered simultaneously. The example model is implemented by means of FEA. A surface spiral winding transmitter coil is used in the FEA model. Quality factor (Q) dependence of surface spiral winding on mechanical design parameters is investigated to maximize the Q. Based on the investigation, a high Q coil is designed for the system and the coil is used as a transmitter to evaluate the proposed methodology.

Original language	English
Title of host publication	IEEE Energy Conversion Congress and Exposition
Subtitle of host publication	Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings
Pages	3503-3510
Number of pages	8
DOIs	https://doi.org/10.1109/ECCE.2011.6064242
State	Published - 2011
Event	3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011 - Phoenix, AZ, United States Duration: 17 Sep 2011 → 22 Sep 2011

Publication series

Name	IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings

Conference

Conference	3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011
Country/Territory	United States
City	Phoenix, AZ
Period	17/09/11 → 22/09/11

UN SDGs

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

SDG 7 Affordable and Clean Energy

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10.1109/ECCE.2011.6064242

Cite this

Lee, S. H., & Lorenz, R. D. (2011). A design methodology for multi-kW, large airgap, MHz frequency, wireless power transfer systems. In IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings (pp. 3503-3510). Article 6064242 (IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings). https://doi.org/10.1109/ECCE.2011.6064242

Lee, Seung Hwan ; Lorenz, Robert D. / A design methodology for multi-kW, large airgap, MHz frequency, wireless power transfer systems. IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings. 2011. pp. 3503-3510 (IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings).

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title = "A design methodology for multi-kW, large airgap, MHz frequency, wireless power transfer systems",

abstract = "In a loosely coupled kW level wireless power transfer system, it is difficult to consider multiple design considerations simultaneously because of the system complexity. Circuit design methodology is critical to achieve efficient, low VA rating, and stable system. In this paper, a design methodology for a loosely coupled series-parallel resonant system is proposed. Proposed design methodology is evaluated by a 3kW, 30cm distance power transfer design example. Using the methodology, efficiency, VA rating, stability, and safety issues are considered simultaneously. The example model is implemented by means of FEA. A surface spiral winding transmitter coil is used in the FEA model. Quality factor (Q) dependence of surface spiral winding on mechanical design parameters is investigated to maximize the Q. Based on the investigation, a high Q coil is designed for the system and the coil is used as a transmitter to evaluate the proposed methodology.",

author = "Lee, \{Seung Hwan\} and Lorenz, \{Robert D.\}",

year = "2011",

doi = "10.1109/ECCE.2011.6064242",

language = "English",

isbn = "9781457705427",

series = "IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings",

pages = "3503--3510",

booktitle = "IEEE Energy Conversion Congress and Exposition",

note = "3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011 ; Conference date: 17-09-2011 Through 22-09-2011",

}

Lee, SH & Lorenz, RD 2011, A design methodology for multi-kW, large airgap, MHz frequency, wireless power transfer systems. in IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings., 6064242, IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings, pp. 3503-3510, 3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011, Phoenix, AZ, United States, 17/09/11. https://doi.org/10.1109/ECCE.2011.6064242

A design methodology for multi-kW, large airgap, MHz frequency, wireless power transfer systems. / Lee, Seung Hwan; Lorenz, Robert D.
IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings. 2011. p. 3503-3510 6064242 (IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings).

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

TY - GEN

T1 - A design methodology for multi-kW, large airgap, MHz frequency, wireless power transfer systems

AU - Lee, Seung Hwan

AU - Lorenz, Robert D.

PY - 2011

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N2 - In a loosely coupled kW level wireless power transfer system, it is difficult to consider multiple design considerations simultaneously because of the system complexity. Circuit design methodology is critical to achieve efficient, low VA rating, and stable system. In this paper, a design methodology for a loosely coupled series-parallel resonant system is proposed. Proposed design methodology is evaluated by a 3kW, 30cm distance power transfer design example. Using the methodology, efficiency, VA rating, stability, and safety issues are considered simultaneously. The example model is implemented by means of FEA. A surface spiral winding transmitter coil is used in the FEA model. Quality factor (Q) dependence of surface spiral winding on mechanical design parameters is investigated to maximize the Q. Based on the investigation, a high Q coil is designed for the system and the coil is used as a transmitter to evaluate the proposed methodology.

AB - In a loosely coupled kW level wireless power transfer system, it is difficult to consider multiple design considerations simultaneously because of the system complexity. Circuit design methodology is critical to achieve efficient, low VA rating, and stable system. In this paper, a design methodology for a loosely coupled series-parallel resonant system is proposed. Proposed design methodology is evaluated by a 3kW, 30cm distance power transfer design example. Using the methodology, efficiency, VA rating, stability, and safety issues are considered simultaneously. The example model is implemented by means of FEA. A surface spiral winding transmitter coil is used in the FEA model. Quality factor (Q) dependence of surface spiral winding on mechanical design parameters is investigated to maximize the Q. Based on the investigation, a high Q coil is designed for the system and the coil is used as a transmitter to evaluate the proposed methodology.

UR - https://www.scopus.com/pages/publications/81855199768

U2 - 10.1109/ECCE.2011.6064242

DO - 10.1109/ECCE.2011.6064242

M3 - Conference contribution

AN - SCOPUS:81855199768

SN - 9781457705427

T3 - IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings

SP - 3503

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BT - IEEE Energy Conversion Congress and Exposition

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Lee SH, Lorenz RD. A design methodology for multi-kW, large airgap, MHz frequency, wireless power transfer systems. In IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings. 2011. p. 3503-3510. 6064242. (IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings). doi: 10.1109/ECCE.2011.6064242

A design methodology for multi-kW, large airgap, MHz frequency, wireless power transfer systems

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