Quarter wavelength resonators for use in wireless capacitive power transfer

C. W. van Neste, A. Phani, Allison Larocque, J. Hawk, R. Kalra, M. J. Banaag, M. Wu, T. Thundat
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引用次数: 8

Abstract

Wireless capacitive power transfer is a growing research area that mainly focuses on non-radiating techniques. It has the potential to be highly efficient, low cost, and less susceptible to alignment issues. One major challenge hindering its widespread use is the high voltages found between the capacitive electrodes. Due to this, bipolar (dual, plus/minus electrode) techniques are predominant in literature, as unipolar (one electrode) techniques generally require even higher voltages for operation. Here we present the use of quarter wave resonators as one method to reduce electrode voltages while maintaining efficient energy transfer in a unipolar capacitive geometry. An accurate theoretical model is given based on standard circuit theory. Experimental verification of power transfer over a 5 m by 0.3 m surface is presented where various loads are placed on the system and changing phase parameters are measured.
用于无线电容功率传输的四分之一波长谐振器
无线电容功率传输是一个新兴的研究领域,主要集中在非辐射技术上。它具有高效率、低成本和不易受对齐问题影响的潜力。阻碍其广泛应用的一个主要挑战是电容电极之间的高电压。因此,双极(双,正/负电极)技术在文献中占主导地位,因为单极(单电极)技术通常需要更高的电压来操作。在这里,我们提出使用四分之一波谐振器作为降低电极电压的一种方法,同时保持单极电容几何结构中有效的能量传递。基于标准电路理论,给出了准确的理论模型。实验验证了在5m × 0.3 m的表面上的功率传输,其中系统上放置了各种负载并测量了变化的相位参数。
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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