Wireless Power Transfer in Over-Coupled Region: Analysis on Frequency Splitting and Multi-Mode Frequency Selection Methods

Haibiao Chen; Songyan Niu; Ziyan Zhao; Linni Jian

doi:10.1109/EI252483.2021.9713416

Wireless Power Transfer in Over-Coupled Region: Analysis on Frequency Splitting and Multi-Mode Frequency Selection Methods

Haibiao Chen
, Songyan Niu
, Ziyan Zhao
, Linni Jian^*

^*Corresponding author for this work

Southern University of Science and Technology

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

3 Scopus citations

Abstract

Frequency splitting occurs when a wireless power transfer (WPT) system works in over-coupled region. Multireceiver systems are especially liable to this phenomenon, therefore suffering from efficiency deterioration, power capacity degradation and unstable operation. By taking a single-transmitter and two-receiver system as an example, this paper aims to analyze and optimize its performance. To describe the system, a simplified model neglecting the cross coupling among receivers (Rx) is developed. Seen from the transmitter port, it is found that a one-to-many system is essentially a one-to-one system with enhanced coupling strength. Then, for accuracy, a full model considering Rx-to-Rx coupling is established, which shows a good agreement with ANSYS simulated results. On this basis, three operation modes are proposed to improve system efficiency, power capacity or achieve a balance of these two indexes. The results indicate that the power loss is decreased by 2.27% under maximum efficiency mode, the charging speed is increased by 21.00% under maximum power mode, and the energy transmission capacity of the system reaches maximum under dual-purpose mode.

Original language	English
Title of host publication	5th IEEE Conference on Energy Internet and Energy System Integration
Subtitle of host publication	Energy Internet for Carbon Neutrality, EI2 2021
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	679-684
Number of pages	6
ISBN (Electronic)	9781665434256
DOIs	https://doi.org/10.1109/EI252483.2021.9713416
State	Published - 2021
Externally published	Yes
Event	5th IEEE Conference on Energy Internet and Energy System Integration, EI2 2021 - Taiyuan, China Duration: 22 Oct 2021 → 25 Oct 2021

Publication series

Name	5th IEEE Conference on Energy Internet and Energy System Integration: Energy Internet for Carbon Neutrality, EI2 2021

Conference

Conference	5th IEEE Conference on Energy Internet and Energy System Integration, EI2 2021
Country/Territory	China
City	Taiyuan
Period	22/10/21 → 25/10/21

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

frequency splitting
inductive power transfer
wireless power transfer (WPT)

Access to Document

10.1109/EI252483.2021.9713416

Cite this

Chen, H., Niu, S., Zhao, Z., & Jian, L. (2021). Wireless Power Transfer in Over-Coupled Region: Analysis on Frequency Splitting and Multi-Mode Frequency Selection Methods. In 5th IEEE Conference on Energy Internet and Energy System Integration: Energy Internet for Carbon Neutrality, EI2 2021 (pp. 679-684). (5th IEEE Conference on Energy Internet and Energy System Integration: Energy Internet for Carbon Neutrality, EI2 2021). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EI252483.2021.9713416

Chen, Haibiao ; Niu, Songyan ; Zhao, Ziyan et al. / Wireless Power Transfer in Over-Coupled Region : Analysis on Frequency Splitting and Multi-Mode Frequency Selection Methods. 5th IEEE Conference on Energy Internet and Energy System Integration: Energy Internet for Carbon Neutrality, EI2 2021. Institute of Electrical and Electronics Engineers Inc., 2021. pp. 679-684 (5th IEEE Conference on Energy Internet and Energy System Integration: Energy Internet for Carbon Neutrality, EI2 2021).

@inproceedings{5dc53d688e2d4ed8b200436ccc5585b0,

title = "Wireless Power Transfer in Over-Coupled Region: Analysis on Frequency Splitting and Multi-Mode Frequency Selection Methods",

abstract = "Frequency splitting occurs when a wireless power transfer (WPT) system works in over-coupled region. Multireceiver systems are especially liable to this phenomenon, therefore suffering from efficiency deterioration, power capacity degradation and unstable operation. By taking a single-transmitter and two-receiver system as an example, this paper aims to analyze and optimize its performance. To describe the system, a simplified model neglecting the cross coupling among receivers (Rx) is developed. Seen from the transmitter port, it is found that a one-to-many system is essentially a one-to-one system with enhanced coupling strength. Then, for accuracy, a full model considering Rx-to-Rx coupling is established, which shows a good agreement with ANSYS simulated results. On this basis, three operation modes are proposed to improve system efficiency, power capacity or achieve a balance of these two indexes. The results indicate that the power loss is decreased by 2.27\% under maximum efficiency mode, the charging speed is increased by 21.00\% under maximum power mode, and the energy transmission capacity of the system reaches maximum under dual-purpose mode.",

keywords = "frequency splitting, inductive power transfer, wireless power transfer (WPT)",

author = "Haibiao Chen and Songyan Niu and Ziyan Zhao and Linni Jian",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE; 5th IEEE Conference on Energy Internet and Energy System Integration, EI2 2021 ; Conference date: 22-10-2021 Through 25-10-2021",

year = "2021",

doi = "10.1109/EI252483.2021.9713416",

language = "英语",

series = "5th IEEE Conference on Energy Internet and Energy System Integration: Energy Internet for Carbon Neutrality, EI2 2021",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "679--684",

booktitle = "5th IEEE Conference on Energy Internet and Energy System Integration",

address = "美国",

}

Chen, H, Niu, S, Zhao, Z & Jian, L 2021, Wireless Power Transfer in Over-Coupled Region: Analysis on Frequency Splitting and Multi-Mode Frequency Selection Methods. in 5th IEEE Conference on Energy Internet and Energy System Integration: Energy Internet for Carbon Neutrality, EI2 2021. 5th IEEE Conference on Energy Internet and Energy System Integration: Energy Internet for Carbon Neutrality, EI2 2021, Institute of Electrical and Electronics Engineers Inc., pp. 679-684, 5th IEEE Conference on Energy Internet and Energy System Integration, EI2 2021, Taiyuan, China, 22/10/21. https://doi.org/10.1109/EI252483.2021.9713416

Wireless Power Transfer in Over-Coupled Region: Analysis on Frequency Splitting and Multi-Mode Frequency Selection Methods. / Chen, Haibiao; Niu, Songyan; Zhao, Ziyan et al.
5th IEEE Conference on Energy Internet and Energy System Integration: Energy Internet for Carbon Neutrality, EI2 2021. Institute of Electrical and Electronics Engineers Inc., 2021. p. 679-684 (5th IEEE Conference on Energy Internet and Energy System Integration: Energy Internet for Carbon Neutrality, EI2 2021).

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

TY - GEN

T1 - Wireless Power Transfer in Over-Coupled Region

T2 - 5th IEEE Conference on Energy Internet and Energy System Integration, EI2 2021

AU - Chen, Haibiao

AU - Niu, Songyan

AU - Zhao, Ziyan

AU - Jian, Linni

PY - 2021

Y1 - 2021

N2 - Frequency splitting occurs when a wireless power transfer (WPT) system works in over-coupled region. Multireceiver systems are especially liable to this phenomenon, therefore suffering from efficiency deterioration, power capacity degradation and unstable operation. By taking a single-transmitter and two-receiver system as an example, this paper aims to analyze and optimize its performance. To describe the system, a simplified model neglecting the cross coupling among receivers (Rx) is developed. Seen from the transmitter port, it is found that a one-to-many system is essentially a one-to-one system with enhanced coupling strength. Then, for accuracy, a full model considering Rx-to-Rx coupling is established, which shows a good agreement with ANSYS simulated results. On this basis, three operation modes are proposed to improve system efficiency, power capacity or achieve a balance of these two indexes. The results indicate that the power loss is decreased by 2.27% under maximum efficiency mode, the charging speed is increased by 21.00% under maximum power mode, and the energy transmission capacity of the system reaches maximum under dual-purpose mode.

AB - Frequency splitting occurs when a wireless power transfer (WPT) system works in over-coupled region. Multireceiver systems are especially liable to this phenomenon, therefore suffering from efficiency deterioration, power capacity degradation and unstable operation. By taking a single-transmitter and two-receiver system as an example, this paper aims to analyze and optimize its performance. To describe the system, a simplified model neglecting the cross coupling among receivers (Rx) is developed. Seen from the transmitter port, it is found that a one-to-many system is essentially a one-to-one system with enhanced coupling strength. Then, for accuracy, a full model considering Rx-to-Rx coupling is established, which shows a good agreement with ANSYS simulated results. On this basis, three operation modes are proposed to improve system efficiency, power capacity or achieve a balance of these two indexes. The results indicate that the power loss is decreased by 2.27% under maximum efficiency mode, the charging speed is increased by 21.00% under maximum power mode, and the energy transmission capacity of the system reaches maximum under dual-purpose mode.

KW - frequency splitting

KW - inductive power transfer

KW - wireless power transfer (WPT)

UR - https://www.scopus.com/pages/publications/85128224833

U2 - 10.1109/EI252483.2021.9713416

DO - 10.1109/EI252483.2021.9713416

M3 - 会议稿件

AN - SCOPUS:85128224833

T3 - 5th IEEE Conference on Energy Internet and Energy System Integration: Energy Internet for Carbon Neutrality, EI2 2021

SP - 679

EP - 684

BT - 5th IEEE Conference on Energy Internet and Energy System Integration

PB - Institute of Electrical and Electronics Engineers Inc.

Y2 - 22 October 2021 through 25 October 2021

ER -

Chen H, Niu S, Zhao Z, Jian L. Wireless Power Transfer in Over-Coupled Region: Analysis on Frequency Splitting and Multi-Mode Frequency Selection Methods. In 5th IEEE Conference on Energy Internet and Energy System Integration: Energy Internet for Carbon Neutrality, EI2 2021. Institute of Electrical and Electronics Engineers Inc. 2021. p. 679-684. (5th IEEE Conference on Energy Internet and Energy System Integration: Energy Internet for Carbon Neutrality, EI2 2021). doi: 10.1109/EI252483.2021.9713416

Wireless Power Transfer in Over-Coupled Region: Analysis on Frequency Splitting and Multi-Mode Frequency Selection Methods

Abstract

Publication series

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UN SDGs

Keywords

Access to Document

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