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Research on Self-alignment Method of Wireless Power Transfer Coils for Rotorcraft Unmanned Aerial Vehicles
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Zhenjie LI  Member, CPSS, Hang CUI, Dechun YUAN, Tao ZHOU, Yiqi LIU  Member, CPSS
Journal of Power Supply | 2025, 23(8) : 217 - 225
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Journal of Power Supply | 2025, 23(8): 217-225
• Wireless Power Transfer •
Research on Self-alignment Method of Wireless Power Transfer Coils for Rotorcraft Unmanned Aerial Vehicles
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Zhenjie LI  Member, CPSS, Hang CUI, Dechun YUAN, Tao ZHOU, Yiqi LIU  Member, CPSS
Affiliations
  • College of Computer and Control Engineering, Northeast Forestry University, Harbin 150040, China
Published: 2025-12-30 doi: 10.13234/j.issn.2095-2805.2025.8.217
Outline
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Aimed at the problem of lateral offset in the magnetic coupling device of a wireless charging system for rotorcraft unmanned aerial vehicles (UAVs), a self-alignment method of coils is proposed by collecting the output voltage while moving the transmitting coil and adjusting its position according to the value of the collected output voltage. First, a mutual-induction model is established to analyze the electrical and magnetic characteristics of the wireless charging system, thereby deriving the expression of the relationship between the output voltage and the lateral distance between the transmitting and receiving coils. Then, the size of a magnetic coupler is designed based on the size of the alignment region, and the alignment regionis divided. Additionally, a specific alignment process is outlined. Finally, an experimental platform was established to conduct self-alignment experiments on the transmitting and receiving coils. Based on the experimental results, it is evident that the proposed method can effectively achieve self-alignment of coils with an alignment accuracy of less than 1.5 cm, meeting the requirements for efficient wireless charging of UAVs.

Wireless power transfer  /  alignment of coils  /  unmanned aerial vehicle (UAV)  /  regional division
李振杰中国电源学会会员, 崔航, 袁得春, 周滔, 刘一琦中国电源学会会员. 面向旋翼无人机的无线电能传输线圈自对准方法研究. 电源学报, 2025 , 23 (8) : 217 -225 . DOI: 10.13234/j.issn.2095-2805.2025.8.217
Zhenjie LI, Hang CUI, Dechun YUAN, Tao ZHOU, Yiqi LIU. Research on Self-alignment Method of Wireless Power Transfer Coils for Rotorcraft Unmanned Aerial Vehicles[J]. Journal of Power Supply, 2025 , 23 (8) : 217 -225 . DOI: 10.13234/j.issn.2095-2805.2025.8.217
Funding
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  • Fundamental Research Funds for the Central Universities(2572023CT15)
  • National Natural Science Foundation of China(52107001)
Appendix
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Year 2025 volume 23 Issue 8
46
4
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Article Info
doi: 10.13234/j.issn.2095-2805.2025.8.217
  • Receive Date：2024-07-02
  • Online Date：2026-10-26
  • Published：2025-12-30
Article Data
Affiliations
History
  • Received：2024-07-02
  • Revised：2024-09-08
  • Accepted：2024-09-29
Funding
Fundamental Research Funds for the Central Universities(2572023CT15)
National Natural Science Foundation of China(52107001)
Affiliations
    College of Computer and Control Engineering, Northeast Forestry University, Harbin 150040, China
References
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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