Improvements of Transfer Efficiency in Capacitive Wireless Power Transfer Under Seawater

Kousuke Murai, Masaya Tamura
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引用次数: 1

Abstract

In this paper, the efficiency improvement in an electric coupler using an electric double layer was presented. High efficiency of a capacitive coupler can be achieved under seawater because the Q-factor improves when using an electric double layer. First, to reveal area characteristics of dielectric constant and Q-factor by measuring of seawater for an optimized design, we built an approximate expression for electromagnetic field analysis. By adjusting the electrode area and distance of an adjacent electrode of capacitive coupler using the approximated Q-factor to optimize the structure, a transmission efficiency of 92.0% in simulation was achieved. Finally, maximum power transfer efficiency of 85.0% in measurement was achieved.
海水下电容式无线电力传输效率的提高
本文介绍了一种采用双电层结构的电耦合器的效率提高。电容耦合器在海水环境下的效率很高,因为采用双电层可以提高q因子。首先,通过测量海水,揭示海水介电常数和q因子的面积特性,为优化设计提供依据,建立了电磁场分析的近似表达式。利用近似的q因子调整电容耦合器的电极面积和相邻电极的距离,优化电容耦合器的结构,仿真结果表明,电容耦合器的传输效率为92.0%。最后,在测量中实现了85.0%的最大功率传输效率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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