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Analysis and Compensation of Incomplete Coupling for Omnidirectional Wireless Power Transfer

Author

Listed:
  • Wenbin Wang

    (State Grid Jiangxi Electric Power Co. Ltd Electric Power Research Institute, Nanchang 330096, China)

  • Huayun Wang

    (State Grid Jiangxi Electric Power Co. Ltd Electric Power Research Institute, Nanchang 330096, China)

  • Qiong Li

    (State Grid Jiangxi Electric Power Co. Ltd Electric Power Research Institute, Nanchang 330096, China)

  • Jun Xu

    (State Grid Jiangxi Electric Power Co. Ltd Electric Power Research Institute, Nanchang 330096, China)

  • Tianqi Meng

    (State Grid Jiangxi Electric Power Co. Ltd Electric Power Research Institute, Nanchang 330096, China)

  • Bowen Zhang

    (School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China)

  • Zhen Zhang

    (School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China)

Abstract

This paper proposes a detailed analysis of the incomplete coupling effect in omnidirectional wireless power transfer systems and a compensation method aiming to improve the transmission performance. Recently, omnidirectional wireless charging technologies have been gradually explored and studied. These charging technologies can transmit power to arbitrary directions in three-dimensional space. However, there are still specific regions where the transmitted power capability dramatically drops to an extremely low level due to the incomplete coupling effect. Accordingly, this paper provides a theoretical analysis and compensation of such an effect. The compensation effectiveness is validated by both a simulation and a 7 W experimental prototype. After the compensation, the transmitted power can be improved by 61% to drive the load in a full range of the space.

Suggested Citation

  • Wenbin Wang & Huayun Wang & Qiong Li & Jun Xu & Tianqi Meng & Bowen Zhang & Zhen Zhang, 2019. "Analysis and Compensation of Incomplete Coupling for Omnidirectional Wireless Power Transfer," Energies, MDPI, vol. 12(17), pages 1-16, August.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:17:p:3277-:d:261062
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    References listed on IDEAS

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    1. Gongjun Liu & Bo Zhang & Wenxun Xiao & Dongyuan Qiu & Yanfeng Chen & Jiu Guan, 2018. "Omnidirectional Wireless Power Transfer System Based on Rotary Transmitting Coil for Household Appliances," Energies, MDPI, vol. 11(4), pages 1-16, April.
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    Cited by:

    1. Gerald K Ijemaru & Kenneth Li-Minn Ang & Jasmine KP Seng, 2022. "Wireless power transfer and energy harvesting in distributed sensor networks: Survey, opportunities, and challenges," International Journal of Distributed Sensor Networks, , vol. 18(3), pages 15501477211, March.
    2. Dongsheng Yang & Jiangwei Tian & Sokhui Won & Bowen Zhou & Zixin Cheng & Bo Hu, 2019. "Optimal Position of the Intermediate Coils in a Magnetic Coupled Resonant Wireless Power Transfer System," Energies, MDPI, vol. 12(20), pages 1-16, October.
    3. Safa Zouaoui & Wael Dghais & Rui Melicio & Hamdi Belgacem, 2020. "Omnidirectional WPT and Data Communication for Electric Air Vehicles: Feasibility Study," Energies, MDPI, vol. 13(24), pages 1-19, December.

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