Modeling and Transmission Characteristics Study of a Resonant Underwater Wireless Electric Power Transmission System

被引:0
作者
Hu, Qiong [1 ,2 ]
Qin, Yu [1 ,2 ]
Li, Zhenfu [1 ,2 ]
Zheng, Meiling [1 ,2 ]
Huang, Junqiang [1 ,2 ]
Ou, Yujia [1 ,2 ]
机构
[1] Cent South Univ, Sch Mech & Elect Engn, Changsha 410083, Peoples R China
[2] State Key Lab Deep Sea Mineral Resources Dev & Uti, Changsha 410012, Peoples R China
关键词
magnetic coupling resonance; underwater wireless energy transmission; output power; transmission efficiency; DESIGN CONSIDERATIONS; OPTIMIZATION;
D O I
10.3390/en17153717
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Compared to the traditional wet-mate underwater power supply method, Magnetic Coupling Resonant Wireless Power Transfer (MCR-WPT) technology boasts advantages such as excellent insulation, high safety, and convenient operation, showing promising application prospects in the field of power supply for underwater vehicles and other mobile underwater devices. In order to explore the transmission characteristics of this technology underwater, this article first establishes a traditional mathematical model, and then modifies the underwater model through analysis of changes in coil self-inductance and mutual inductance, as well as the impact of eddy current losses. Using the modified mathematical model of the underwater MCR-WPT system, the transmission characteristics are analyzed, and simulations and experimental validations are performed using MATLAB R2022a software. In the study of frequency characteristics, it is found that the system operates optimally when both ends of the circuit work at the resonant state; that is, when finput = fresonance = 100 kHz, the output performance is at its best, and the optimal resonant frequency significantly improves power and transmission efficiency. When the input frequency is less than 87.3 kHz or greater than 122.9 kHz, the output power decreases to less than half of the maximum power. In the investigation of load effects, the optimal load for maximizing system output power was identified, but the load that maximizes transmission efficiency is different from this optimal load. This study provides strong theoretical support and guidance for improving the performance of underwater wireless power transmission systems.
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页数:25
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