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A New Arrangement of Active Coils for Wireless Charging of UAV

Author

Listed:
  • Zhengwang He

    (School of Automation, Central South University, Changsha 410083, China)

  • Zhiyong Li

    (School of Automation, Central South University, Changsha 410083, China)

  • Ruoyue Wang

    (School of Automation, Central South University, Changsha 410083, China)

  • Ying Fan

    (School of Electric Engineering, Guangdong Mechanical & Electronical College of Technology, Guangzhou 510515, China)

  • Minqian Xu

    (School of Automation, Central South University, Changsha 410083, China)

Abstract

This paper presents the design and optimization of a wireless power transfer (WPT) charging system based on magnetically coupled resonant technology, applied to an Unmanned Aerial Vehicle (UAV). In this paper, a charging system, including dual active transmitter coils and a single receiver coil, is proposed. The dual transmitting coils adopt a coaxial structure with different radii. This structure simplifies the calculation of the complex mutual inductance between the coils to a function of mutual inductance only related to the value of the radial misalignment. Aiming toward a constant charging power, the optimal transmission efficiency of electric energy is achieved by controlling the input voltages of the active coils, which are solved via a set of equations defined as Lagrange multipliers. The simulation results of the 570 V and 85,000 Hz system verified the validity of the proposed wireless UAV charging scheme.

Suggested Citation

  • Zhengwang He & Zhiyong Li & Ruoyue Wang & Ying Fan & Minqian Xu, 2021. "A New Arrangement of Active Coils for Wireless Charging of UAV," Energies, MDPI, vol. 14(18), pages 1-11, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:18:p:5754-:d:634358
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    References listed on IDEAS

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    1. Tommaso Campi & Silvano Cruciani & Mauro Feliziani, 2018. "Wireless Power Transfer Technology Applied to an Autonomous Electric UAV with a Small Secondary Coil," Energies, MDPI, vol. 11(2), pages 1-15, February.
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