Wireless charging system for unmanned aerial vehicles using lightweight and compact receiver modules

This paper proposes a wireless charging system (WCS) for unmanned aerial vehicles (UAVs) that features a lightweight and compact receiver module and constant current/constant voltage (CC/CV) charging. Optimizing the LCC-none compensation topology reduces the weight and volume of the receiver module mainly by avoiding the secondary-side resonant capacitors. In addition, high system performance similar to that of the LCC-S compensation topology is achieved. A magnetic coupler with dual power transfer channels is designed using the specific structure of the UAV. The reasonable charging zone is determined by optimizing the magnetic coupler parameters. Besides, a primary-side PI-controlled Buck converter is used to realize CC/CV charging with a high system efficiency under a suitable misalignment range to avoid the secondary-side circuit and control complexity. Finally, both simulation and experimental results verify the feasibility of the designed WCS. The total weight of the receiver coil is only 54 g. During 5 A CC charging, the tested maximum output power and system efficiency values are 90 W and 87.2%, respectively.

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Cite this article

[IEEE Style]

Y. Tian, Z. Li, H. Liu, Y. Liu, M. Ban, J. Zheng, "Wireless charging system for unmanned aerial vehicles using lightweight and compact receiver modules," Journal of Power Electronics, vol. 23, no. 4, pp. 712-723, 2023. DOI: 10.1007/s43236-022-00567-y.

[ACM Style]

Yuhong Tian, Zhenjie Li, Hao Liu, Yiqi Liu, Mingfei Ban, and Junyuan Zheng. 2023. Wireless charging system for unmanned aerial vehicles using lightweight and compact receiver modules. Journal of Power Electronics, 23, 4, (2023), 712-723. DOI: 10.1007/s43236-022-00567-y.