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Characteristics of Wireless Power Transmission Based on a New Spiral Resonant Coil

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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

To improve the transmission efficiency of three- and four-coil wireless power transmission systems over medium-range distances, a three-turn spiral resonant coil with a high quality factor is designed to replace the conventional mosquito resonant coil. The resonant coil operates at around 27 MHz and has the resonant characteristics of a series LC circuit. The research results show that, compared with the conventional mosquito three-coil WPT system, the spiral system has a more stable operating frequency and higher transmission efficiency over medium-range distances. Moreover, when the distance is 70 mm, the transmission efficiency of the spiral system remains above 30%, whereas that of the mosquito system is only 20.8%. Compared with the conventional mosquito four-coil WPT system, the spiral system has a stronger magnetic coupling. The results provide a new scheme for the selection of resonant coils in three- and four-coil WPT systems.

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Acknowledgment

This work was funded by the National Natural Science Foundation of China (No. 11874245) and the Central Government Guides local Science and Technology Development Funds (No. YDZJSX2021B011) and Key R&D Projects in Shanxi Province (No. 201903D121026).

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Authors and Affiliations

  1. Shanxi Provincial Key Laboratory of Microstructure Electromagnetic Functional Materials, Shanxi Datong University, Datong, 037009, China

    Haoyan **, Yihao Wei, Yong Dong, Yanhong Liu, Lijuan Dong & Yunlong Shi

  2. Institute of Solid State Physics, Shanxi Datong University, Datong, 037009, China

    Haoyan **, Yihao Wei, Yanhong Liu, Lijuan Dong & Yunlong Shi

  3. Institute of Theoretical Physics, Shanxi University, Taiyuan, 037006, China

    Yong Dong

Authors
  1. Haoyan **
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  2. Yihao Wei
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  3. Yong Dong
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  4. Yanhong Liu
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  5. Lijuan Dong
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  6. Yunlong Shi
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Corresponding author

Correspondence to Lijuan Dong .

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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, Bei**g, China

    Pengcheng Zhang

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© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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**, H., Wei, Y., Dong, Y., Liu, Y., Dong, L., Shi, Y. (2023). Characteristics of Wireless Power Transmission Based on a New Spiral Resonant Coil. 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_5

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  • DOI: https://doi.org/10.1007/978-981-99-0631-4_5

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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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