Square Polyhedron Transmitter for Three-Dimensional Omnidirectional Wireless Power Transfer

被引：0
作者：
Yubo Zhao
Bochao Guo
Zijian Tian
Wei Chen
Wei Yang
Shan Pan
机构：
[1] China University of Mining and Technology (Beijing),
[2] The Shaanxi Coal Industry Company Limited,undefined
[3] China University of Mining and Technology,undefined
来源：
Arabian Journal for Science and Engineering | 2024年 / 49卷
关键词：
Omnidirectional wireless power transfer; Parallel coil; Opposite current; Square polyhedron transmitter; Dual receivers;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Achieving three-dimensional (3D) omnidirectional wireless power transfer (OWPT) without any active control is challenging. This paper proposes a square polyhedron transmitter (SPTx) based on the reverse current of parallel coil, which can create a 3D omnidirectional magnetic field. To minimize the counteracting of the reverse magnetic field, each coil is equipped with magnetic shielding material. The coils of SPTx are connected in series and excited by a single power supply without any current amplitude or phase control circuits. The performance of SPTx system is validated with different receivers (Rx) by experiments. In the experiment with dual Rxs, the maximum transmission efficiency is 79.6% with an efficiency stability rate of 49%. In addition, the output power does not affect the efficiency, and more Rxs will increase transmission efficiency.
引用
收藏
页码：6577 / 6586
页数：9
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