利用电磁哈尔巴赫阵列扩展无线电力传输距离

Tamuno-omie Gogo, Cristina A. Alexandru, D. Zhu
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引用次数: 1

摘要

本文提出了一种电磁哈尔巴赫阵列来延长无线电力传输距离。哈尔巴赫阵列是一种特殊的永磁体排列,其中一侧排列较强,另一侧较弱。提出的系统产生单面交流电磁场使用五个相同的方形线圈串联。通过仿真和实验验证,设计了用于WPT的单面电磁Halbach阵列,提高了整体功率传输效率和功率传输距离。实验结果表明,尽管两种系统在距离<5 mm时都显示出较高的PTE,但双线圈系统的PTE降至40%以下,因为该系统在最大距离为20 mm时保持40%的PTE,这是双线圈系统的4倍。这是WPT系统的一个显著改进。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Extending Wireless Power Transfer Distance using Electromagnetic Halbach Array
In this paper, an electromagnetic Halbach array is proposed to extend the wireless power transfer distance. A Halbach array is a special permanent magnets arrangement where one side of the arrangement is stronger, and the other side weaker. The proposed system generates a single-sided AC electromagnetic field using five identical square coils connected in series. With simulation and experimental verification, a single-sided electromagnetic Halbach array for WPT have been designed, and the overall power transfer efficiency (PTE) and power transfer distance have been improved. Experimentally, although the both systems showed high PTE at distance <5 mm, the two-coil system drops below 40% as the proposed system maintained a 40% PTE at maximum distance of 20 mm, which is 4 times greater than the two-coil system. This is a notable improvement in the WPT system.
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