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Improved Electromagnetic Halbach Array for Enhanced Efficiency in Wireless Power Transfer

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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

This paper presents an improved design of an electromagnetic Halbach array that can be used as the transmitter of the wireless power transfer system for enhanced performance. An electromagnetic Halbach array consists of five coils, i.e. one base coil and four side coils forming a transmitter cube. Superposition of the magnetic fields generated by these five coils results in a stronger magnetic field in half of the cube. When the receiver coil is placed in the strong magnetic field half, higher power transfer efficiency can be achieved over longer transmission distances. It was found in the simulation that the magnetic field of the base coil distributed more densely in locations near its centre. Therefore, the proposed design moves the side coils closer to the centre of the base coil. It was verified in the ANSYS magnetostatic simulation that this method is able to increase the magnetic field strength of the electromagnetic Halbach array. Furthermore, co-simulation of ANSYS Maxwell and Simplorer has proved that using the improved electromagnetic Halbach array as the wireless power transmitter, higher power transfer efficiency is obtained when the receiver is placed inside the strong magnetic field half of the transmitter cube.

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Authors and Affiliations

  1. Shanghai Jiao Tong University, Shanghai, 200240, China

    Dibin Zhu

  2. University of Exeter, Exeter, EX4 4PY, UK

    Tamuno-omie Gogo

Authors
  1. Dibin Zhu
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  2. Tamuno-omie Gogo
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Corresponding author

Correspondence to Dibin Zhu .

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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, Beijing, China

    Pengcheng Zhang

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

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Zhu, D., Gogo, To. (2023). Improved Electromagnetic Halbach Array for Enhanced Efficiency in Wireless Power Transfer. 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_55

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  • DOI: https://doi.org/10.1007/978-981-99-0631-4_55

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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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