A New Magnetic Coupler With High Rotational Misalignment Tolerance for Unmanned Aerial Vehicles Wireless Charging

被引：29
作者：
Li, Yong [1 ]
Sun, Wenjun [1 ]
Liu, Junjiang [1 ]
Liu, Yuhang [1 ]
Yang, Xiao [1 ]
Li, Yanling [1 ]
Hu, Jiefeng [2 ]
He, Zhengyou [1 ]
机构：
[1] Southwest Jiaotong Univ, Sch Elect Engn, Key Lab Magnet Suspens Technol & Maglev Vehicle, Minist Educ, Chengdu 610031, Peoples R China
[2] Federat Univ Australia, Inst Innovat Sci & Sustainabil, Ctr NewEnergy Transit Res, Mt Helen, Vic 3353, Australia
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2022年 / 37卷 / 11期
关键词：
Magnetic flux; Couplers; Voltage; Inductive charging; Transmitters; Inductance; Couplings; Magenetic coupler; rotational misalignment; unmanned aerial vehicles (UAVs); wireless charging; SYSTEMS;
D O I：
10.1109/TPEL.2022.3184335
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, a novel magnetic coupler with high rotational misalignment tolerance is proposed for unmanned aerial vehicles (UAVs) wireless charging. The transmitting coil consists of an inner coil and an outer circular coil connected in series, which generates a horizontal magnetic field from the center to all periphery directions within the charging range. Then, to receive the flux effectively and to adapt to UAV's structure, a vertical square air-core coil is designed and attached to the landing gear. The proposed magnetic coupler can reduce significantly the magnetic fluxes penetrating through the body of the UAV, therefore mitigating electromagnetic interference with onboard devices. Simulation based on ANSYS Maxwell and experiments based on a laboratory prototype are carried out to validate the proposal. The results show that, the proposed magnetic coupler can transmit power in all 360 degrees of rotational misalignments, and the output voltage of the wireless charging system fluctuates only 2% around the 48 V reference.
引用
收藏
页码：12986 / 12991
页数：6
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