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Coupling Comparison of Magnetic Couplers for Mid-range Wireless Power Transfer Systems

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The Proceedings of 2022 International Conference on Wireless Power Transfer (ICWPT2022) (ICWPT 2022)

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 1018))

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Abstract

Mid-range wireless power transfer systems show the advantages of high load-to-source efficiency and long power transfer distance. In this study, the planar circular, planar square, cylindrical, cuboid, circular-cylindrical, and square-cuboid couplers are optimized and compared using finite element simulation. To reduce the ferrite usage, the shielding scheme and ferrite layout of the cylindrical and cuboid couplers are optimized. To improve the coupling coefficient, the key size parameters of the planar circular, planar square, circular-cylindrical, and square-cuboid couplers are optimized. The impact of normalized pad height and distance-to-diameter ratio on coupling coefficient is studied. The coupling coefficients of the six typical mid-range magnetic couplers in different cases are compared. Several design rules for mid-range magnetic couplers are given.

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Acknowledgement

This work was supported in part by the Heilongjiang Provincial Natural Science Foundation of China under grant YQ2021E024, in part by the Young Elite Scientists Sponsorship Program by CAST under grant JLB-2021-284, and in part by the Natural Science Foundation of Shanghai Municipality of China under grant 19ZR1423400.

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Authors and Affiliations

  1. Harbin Institute of Technology, Harbin, 100080, China

    Yousu Yao & Zixu Fang

  2. Jiangsu Yueda Group, Yancheng, 224007, China

    Qinan Ni

  3. Shanghai Aerospace Equipments Manufacturer Co., Ltd., Shanghai, 200240, China

    Xiufang Liu

Authors
  1. Yousu Yao
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  2. Zixu Fang
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  3. Qinan Ni
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  4. Xiufang Liu
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Corresponding author

Correspondence to Yousu Yao .

Editor information

Editors and Affiliations

  1. Shanghai Jiao Tong University, Shanghai, China

    Chengbin Ma

  2. Fuzhou University, Fuzhou, Fujian, China

    Yiming Zhang

  3. Kunming University of Science and Technology, Kunming, Yunnan, China

    Siqi Li

  4. Chongqing University, Chongqing, China

    Lei Zhao

  5. Shanghai Jiao Tong University, Shanghai, China

    Ming Liu

  6. Tsinghua University, Beijing, China

    Pengcheng Zhang

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Yao, Y., Fang, Z., Ni, Q., Liu, X. (2023). Coupling Comparison of Magnetic Couplers for Mid-range Wireless Power Transfer Systems. In: Ma, C., Zhang, Y., Li, S., Zhao, L., Liu, M., Zhang, P. (eds) The Proceedings of 2022 International Conference on Wireless Power Transfer (ICWPT2022). ICWPT 2022. Lecture Notes in Electrical Engineering, vol 1018. Springer, Singapore. https://doi.org/10.1007/978-981-99-0631-4_21

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  • DOI: https://doi.org/10.1007/978-981-99-0631-4_21

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-99-0630-7

  • Online ISBN: 978-981-99-0631-4

  • eBook Packages: EngineeringEngineering (R0)

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