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To address the power fluctuation issues caused by landing misalignment in unmanned aerial vehicle (UAV) wireless charging systems, a novel high-misalignment-tolerance system based on the magnetic field superposition principle is proposed. This system innovatively employs a vertically stacked triple-coil coupler structure. By leveraging the complementary magnetic fields of circular coils and U-shaped coils, combined with an LCC/S compensation topology, stable voltage output is achieved. At maximum operational offset (35% transmitter diameter, 140 mm), mutual inductance fluctuation remained within ≤  ± 3.4% - demonstrating 2.1 × greater misalignment tolerance than benchmark designs while significantly enhancing system robustness.

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High-Misalignment-Tolerance System Design for UAV Wireless Charging

  • 会议论文

  • 发表日期：

    2026年

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  • Qu Han,
  • Zhang Jiantao,
  • Li Guangyao

摘要

To address the power fluctuation issues caused by landing misalignment in unmanned aerial vehicle (UAV) wireless charging systems, a novel high-misalignment-tolerance system based on the magnetic field superposition principle is proposed. This system innovatively employs a vertically stacked triple-coil coupler structure. By leveraging the complementary magnetic fields of circular coils and U-shaped coils, combined with an LCC/S compensation topology, stable voltage output is achieved. At maximum operational offset (35% transmitter diameter, 140 mm), mutual inductance fluctuation remained within ≤  ± 3.4% - demonstrating 2.1 × greater misalignment tolerance than benchmark designs while significantly enhancing system robustness.