水下无线电力传输

A. Askari, R. Stark, J. Curran, D. Rule, K. Lin
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引用次数: 46

摘要

在各种商业应用中,特别是在电动汽车行业,通过使用两个松耦合的RLC电路以相同的频率调谐共振,已经证明了在大范围距离和方向偏移上传输功率的可行性。谐振无线电力传输的关键系统概念,如分频、最大工作距离和系统在过度和不足耦合时的行为,在理论上得到了很好的理解,并在实验中得到了证明。虽然前人对空中WPT的研究已经相当广泛和成熟,但对水下WPT的研究却很少。特别是,还没有发表过研究来描述基本系统概念在海水等导电介质中是如何变化的。在本文中,我们报告了研究海水电导率对水下谐振无线电力传输影响的实验结果,并与空气中展示的基本系统概念进行了比较。结果表明,海水造成的损失在20 kHz左右的频率上变得明显,而在50 kHz以上的频率上可能会很大。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Underwater wireless power transfer
The feasibility of transferring power over a wide range of distances and orientation offsets has been proven in air for various commercial applications, notably in the electric vehicle industry, by using two loosely-coupled RLC circuits that are tuned to resonate at the same frequency. Key system concepts for resonant wireless power transfer, such as frequency splitting, maximum operating distance, and behavior of the system as it becomes over and under coupled, are well understood theoretically, and demonstrated experimentally. Although prior work on WPT in air is quite extensive and mature, very little research has been conducted on underwater WPT. In particular, no studies have been published describing how basic system concepts vary within a conducting medium such as seawater. In this paper, we report the results of experiments addressing the effects of seawater conductivity on underwater resonant wireless power transfer, compared to the basic system concepts exhibited in air. Results indicate that the losses due to seawater become noticeable for frequencies around 20 kHz, and can be large for frequencies above 50 kHz.
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