Stepless Frequency Regulation for Load-Independent Wireless Power Transfer with Time-Division Switched Capacitors

Hui Wang; K.T. Chau; Wei Liu; Yao Tang; Chaoqiang Jiang; Stefan M. Goetz

doi:10.1109/IECON51785.2023.10312206

Stepless Frequency Regulation for Load-Independent Wireless Power Transfer with Time-Division Switched Capacitors

Hui Wang
, K.T. Chau
, Wei Liu
, Yao Tang
, Chaoqiang Jiang
, Stefan M. Goetz

Department of Electrical Engineering

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

2 Citations (Scopus)

Abstract

This paper proposes and implements a stepless frequency regulation method for wireless power transfer (WPT) with a simple LC compensation network to provide load-independent transmitter current. It should be mentioned that the capacitor in LC compensation network is controlled by a switch. Different from previous switched capacitor compensation networks, which can only select a limited number of resonant frequency points, this model can choose the resonant frequency arbitrarily in a wide frequency range. In theory, the frequency range can be controlled from a few kilohertz to hundreds of kilohertz. The key is controlling the turn-on time of the switch and adjusting the activation time length of the controlled capacitor in every WPT cycle. Therefore, the proposed system is very suitable for multi-frequency WPT, as the system can work at full resonance with practically arbitrary frequency. A Simulink simulation serves for verification, and the results prove the system can change the resonant frequency from 100 kHz to 300 kHz continuously while keeping the transmitter current load-independent. © 2023 IEEE.

Original language	English
Title of host publication	IECON 2023 - 49th Annual Conference of the IEEE Industrial Electronics Society
Publisher	IEEE Computer Society
Number of pages	6
ISBN (Electronic)	9798350331820
ISBN (Print)	9798350331837
DOIs	https://doi.org/10.1109/IECON51785.2023.10312206
Publication status	Published - 2023
Event	49th Annual Conference of the IEEE Industrial Electronics Society (IECON 2023) - Marina Bay Sands Expo and Convention Centre, Singapore Duration: 16 Oct 2023 → 19 Oct 2023 https://www.iecon2023.org/

Publication series

Name	IECON Proceedings (Industrial Electronics Conference)
ISSN (Print)	2162-4704
ISSN (Electronic)	2577-1647

Conference

Conference	49th Annual Conference of the IEEE Industrial Electronics Society (IECON 2023)
Abbreviated title	IEEE IECON 2023
Place	Singapore
Period	16/10/23 → 19/10/23
Internet address	https://www.iecon2023.org/

Funding

This work was partially supported by a grant from the Hong Kong Research Grants Council, Hong Kong Special Administrative Region, China, under Project T23-701/20-R, and partially supported by the National Science Foundation (NSF) under Grant #1608929.

Research Keywords

LC compensation
load-independent
stepless frequency regulation
time-division
wireless power transfer

RGC Funding Information

RGC-funded

Access Output

10.1109/IECON51785.2023.10312206

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Cite this

Wang, H., Chau, K. T., Liu, W., Tang, Y., Jiang, C., & Goetz, S. M. (2023). Stepless Frequency Regulation for Load-Independent Wireless Power Transfer with Time-Division Switched Capacitors. In IECON 2023 - 49th Annual Conference of the IEEE Industrial Electronics Society (IECON Proceedings (Industrial Electronics Conference)). IEEE Computer Society. https://doi.org/10.1109/IECON51785.2023.10312206

@inproceedings{0a8d832b4bd54e458c22e61103f546f7,

title = "Stepless Frequency Regulation for Load-Independent Wireless Power Transfer with Time-Division Switched Capacitors",

abstract = "This paper proposes and implements a stepless frequency regulation method for wireless power transfer (WPT) with a simple LC compensation network to provide load-independent transmitter current. It should be mentioned that the capacitor in LC compensation network is controlled by a switch. Different from previous switched capacitor compensation networks, which can only select a limited number of resonant frequency points, this model can choose the resonant frequency arbitrarily in a wide frequency range. In theory, the frequency range can be controlled from a few kilohertz to hundreds of kilohertz. The key is controlling the turn-on time of the switch and adjusting the activation time length of the controlled capacitor in every WPT cycle. Therefore, the proposed system is very suitable for multi-frequency WPT, as the system can work at full resonance with practically arbitrary frequency. A Simulink simulation serves for verification, and the results prove the system can change the resonant frequency from 100 kHz to 300 kHz continuously while keeping the transmitter current load-independent. {\textcopyright} 2023 IEEE.",

keywords = "LC compensation, load-independent, stepless frequency regulation, time-division, wireless power transfer",

author = "Hui Wang and K.T. Chau and Wei Liu and Yao Tang and Chaoqiang Jiang and Goetz, \{Stefan M.\}",

year = "2023",

doi = "10.1109/IECON51785.2023.10312206",

language = "English",

isbn = "9798350331837",

series = "IECON Proceedings (Industrial Electronics Conference)",

publisher = "IEEE Computer Society",

booktitle = "IECON 2023 - 49th Annual Conference of the IEEE Industrial Electronics Society",

address = "United States",

note = "49th Annual Conference of the IEEE Industrial Electronics Society (IECON 2023), IEEE IECON 2023 ; Conference date: 16-10-2023 Through 19-10-2023",

url = "https://www.iecon2023.org/",

}

Wang, H, Chau, KT, Liu, W, Tang, Y, Jiang, C & Goetz, SM 2023, Stepless Frequency Regulation for Load-Independent Wireless Power Transfer with Time-Division Switched Capacitors. in IECON 2023 - 49th Annual Conference of the IEEE Industrial Electronics Society. IECON Proceedings (Industrial Electronics Conference), IEEE Computer Society, 49th Annual Conference of the IEEE Industrial Electronics Society (IECON 2023), Singapore, 16/10/23. https://doi.org/10.1109/IECON51785.2023.10312206

Stepless Frequency Regulation for Load-Independent Wireless Power Transfer with Time-Division Switched Capacitors. / Wang, Hui; Chau, K.T.; Liu, Wei et al.
IECON 2023 - 49th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society, 2023. (IECON Proceedings (Industrial Electronics Conference)).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Stepless Frequency Regulation for Load-Independent Wireless Power Transfer with Time-Division Switched Capacitors

AU - Wang, Hui

AU - Chau, K.T.

AU - Liu, Wei

AU - Tang, Yao

AU - Jiang, Chaoqiang

AU - Goetz, Stefan M.

PY - 2023

Y1 - 2023

N2 - This paper proposes and implements a stepless frequency regulation method for wireless power transfer (WPT) with a simple LC compensation network to provide load-independent transmitter current. It should be mentioned that the capacitor in LC compensation network is controlled by a switch. Different from previous switched capacitor compensation networks, which can only select a limited number of resonant frequency points, this model can choose the resonant frequency arbitrarily in a wide frequency range. In theory, the frequency range can be controlled from a few kilohertz to hundreds of kilohertz. The key is controlling the turn-on time of the switch and adjusting the activation time length of the controlled capacitor in every WPT cycle. Therefore, the proposed system is very suitable for multi-frequency WPT, as the system can work at full resonance with practically arbitrary frequency. A Simulink simulation serves for verification, and the results prove the system can change the resonant frequency from 100 kHz to 300 kHz continuously while keeping the transmitter current load-independent. © 2023 IEEE.

AB - This paper proposes and implements a stepless frequency regulation method for wireless power transfer (WPT) with a simple LC compensation network to provide load-independent transmitter current. It should be mentioned that the capacitor in LC compensation network is controlled by a switch. Different from previous switched capacitor compensation networks, which can only select a limited number of resonant frequency points, this model can choose the resonant frequency arbitrarily in a wide frequency range. In theory, the frequency range can be controlled from a few kilohertz to hundreds of kilohertz. The key is controlling the turn-on time of the switch and adjusting the activation time length of the controlled capacitor in every WPT cycle. Therefore, the proposed system is very suitable for multi-frequency WPT, as the system can work at full resonance with practically arbitrary frequency. A Simulink simulation serves for verification, and the results prove the system can change the resonant frequency from 100 kHz to 300 kHz continuously while keeping the transmitter current load-independent. © 2023 IEEE.

KW - LC compensation

KW - load-independent

KW - stepless frequency regulation

KW - time-division

KW - wireless power transfer

UR - https://www.scopus.com/pages/publications/85179517540

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85179517540&origin=recordpage

U2 - 10.1109/IECON51785.2023.10312206

DO - 10.1109/IECON51785.2023.10312206

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 9798350331837

T3 - IECON Proceedings (Industrial Electronics Conference)

BT - IECON 2023 - 49th Annual Conference of the IEEE Industrial Electronics Society

PB - IEEE Computer Society

T2 - 49th Annual Conference of the IEEE Industrial Electronics Society (IECON 2023)

Y2 - 16 October 2023 through 19 October 2023

ER -

Wang H, Chau KT, Liu W, Tang Y, Jiang C, Goetz SM. Stepless Frequency Regulation for Load-Independent Wireless Power Transfer with Time-Division Switched Capacitors. In IECON 2023 - 49th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society. 2023. (IECON Proceedings (Industrial Electronics Conference)). Epub 2023 Nov 16. doi: 10.1109/IECON51785.2023.10312206

Stepless Frequency Regulation for Load-Independent Wireless Power Transfer with Time-Division Switched Capacitors

Abstract

Publication series

Conference

Funding

Research Keywords

RGC Funding Information

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TBRS-ExtU-Lead: Wireless Power Transfer: The Next Stage

Cite this

Stepless Frequency Regulation for Load-Independent Wireless Power Transfer with Time-Division Switched Capacitors

Abstract

Publication series

Conference

Funding

Research Keywords

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

TBRS-ExtU-Lead: Wireless Power Transfer: The Next Stage

Cite this