Optimization of Transmitting Coils Based on Uniform Magnetic Field for Unmanned Aerial Vehicle Wireless Charging System

Wang, Wei; Xu, Chenjin; Zhang, Cun; Yang, Jingyu

doi:10.1109/tmag.2021.3063796

Cited by 13 publications

(5 citation statements)

References 11 publications

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“…At present, the power supply solutions for online monitoring equipment mainly include: 1) traditional energy storage equipment such as chemistry batteries and UPS; 2) renewable energy such as wind energy and solar energy; 3) laser and optical fiber, etc., but these methods are not practical and economical (Zhou et al, 2022;Zhao et al, 2015); (Zhao et al, 2013). In recent years, the combination of energy harvester and Wireless Power Transfer (WPT) technology has provided a new power supply solution for power transmission tower monitoring equipment, which has attracted more and more attention from researchers (Huang et al, 2019;Jiang et al, 2021;Hou et al, 2021;Wang et al, 2021). The WPT technology can extract electromagnetic energy from power line by energy harvester, and transmit it to the lowvoltage side of the tower over a long distance to supply power to the monitoring equipment.…”

Section: Introductionmentioning

confidence: 99%

Research on optimal coil configuration scheme of insulator relay WPT system

et al. 2023

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This paper presents the optimized structure of the multi-relay coils insulator of WPT system. With the rapid development of the smart grid, on-line monitoring devices in the transmission tower have been widely used. However, the power supply problem has become an important bottleneck in the development of transmission tower intelligent sensing technology. Hence, the multi-relay coils wireless power transfer technology has been proposed to supply for the tower monitoring equipment in this paper. Compared with traditional multi-relay coils, the effects of the number, arrangement position and turns of relay coils on the performance of WPT system are further explored. The simulation results show that the operation performance of WPT can be significantly improved by optimizing the coil arrangement position and turns. Moreover, there are multiple configuration schemes that the design indexes of the system could be achieved. The experiment results show that in the 110 kV high-voltage transmission with the insulator length of 1.015 m, the transmitting power and efficiency of the WPT system could be increased to 1.81 W and 60.11% respectively by parameters optimization, which ensures the continuous and stable work of the monitoring equipment.

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Section: Introductionmentioning

confidence: 99%

Research on optimal coil configuration scheme of insulator relay WPT system

et al. 2023

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“…11 A coil design method was suggested to canalize the magnetic flux and increase misalignment tolerance. 12 A small receiving coil and a large transmitting coil were constructed to reduce the weight of UAVs. 13 A magnetic coupler with a nanocrystalline alloy film was created to reduce eddy current loss in the UAV body.…”

Section: Introductionmentioning

confidence: 99%

“…A coil design with high rotational misalignment tolerance and stable operation up to 360° was proposed 11 . A coil design method was suggested to canalize the magnetic flux and increase misalignment tolerance 12 . A small receiving coil and a large transmitting coil were constructed to reduce the weight of UAVs 13 .…”

Section: Introductionmentioning

confidence: 99%

DDD coil design for wireless charging of unmanned aerial vehicles

Doğan,

Ağçal

2023

Micro & Optical Tech Letters

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The utilization of unmanned aerial vehicles (UAV) has become prevalent nowadays. UAVs are autonomous devices, except for self‐charging. Wireless power transfer (WPT) technologies eliminate human intervention in UAV charging and enable independent charging. The factors making WPT systems popular are autonomizing charging, eliminating cable complexity, and avoiding difficulties caused by environmental conditions. WPT of the UAV in the near field is provided by inductive coupling. In this paper, two vertical rectangular coils and horizontal DDD (triple rectangle) coils were placed in the receiver and the transmitter for UAV wireless charging, respectively. The design of the coils was made in ANSYS Maxwell 3D. A wireless charger of the UAV was designed for 100 W output power at 140 kHz frequency. The misalignment tolerance of the proposed design concerning the x‐ and y‐axis was examined. In addition, the magnetic flux density and magnetic field distributions of the WPT system were investigated. The study found that the proposed design can transfer energy wirelessly with 94% efficiency up to 10.3 cm horizontal and 1.7 cm vertical misalignment.

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“…Wireless power transfer (WPT) has become a popular and promising technology in transportation and medical industry [1][2][3][4][5][6]. The WPT technology has gained a lot of attention due to its advantages, with the characteristics of convenience, clean and slight radiation.…”

Section: Introductionmentioning

confidence: 99%

Research on Optimization of Horizontal Omnidirectional Misalignment Tolerance of WPT Based on Double D Coupler

et al. 2022

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DD (Double D) coils have been researched and utilized due to their excellent misalignment tolerance. Here, a compound DD coupler sets for stationary wireless power chargers, which has significantly better anti-misalignment performance than single DD coupler in all directions, is proposed. The transmitting coils are composed of two parts of DD coils wound in opposite directions. Moreover, to obtain the low-level variation of mutual inductance between compound transmitting coils and receiving coils when offset occurs, a parameter optimization strategy of compensation coils is also proposed. With the properly designed parameters, the mutual inductance between transmitting and receiving coils could remain basically constant when misalignment occurs, which means that the efficiency and power remain relatively constant when offset occurs. Finally, both single DD coils and compound DD coils experimental prototypes are built to compare anti-misalignment ability performance. The results show that the proposed system is basically more stable and has a higher output power and more stable efficiency than that of unoptimized coupler during migration. In particular, with the employment of the antiparallel winding, the efficiency fluctuates from 85.5% to 85% when the 0.1-m offset in the X-axis and Y-axis occurs simultaneously. Moreover, the higher and basically more stable output power is also achieved.

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Optimization of Transmitting Coils Based on Uniform Magnetic Field for Unmanned Aerial Vehicle Wireless Charging System

Cited by 13 publications

References 11 publications

Research on optimal coil configuration scheme of insulator relay WPT system

Research on optimal coil configuration scheme of insulator relay WPT system

DDD coil design for wireless charging of unmanned aerial vehicles

Research on Optimization of Horizontal Omnidirectional Misalignment Tolerance of WPT Based on Double D Coupler

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