Square Polyhedron Transmitter for Three-Dimensional Omnidirectional Wireless Power Transfer

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 c...

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Bibliographic Details
Published in:Arabian journal for science and engineering (2011) 2024-05, Vol.49 (5), p.6577-6586
Main Authors: Zhao, Yubo, Guo, Bochao, Tian, Zijian, Chen, Wei, Yang, Wei, Pan, Shan
Format: Article
Language:English
Subjects:
Active control
Coils
Engineering
Humanities and Social Sciences
Magnetic fields
Magnetic shielding
multidisciplinary
Phase control
Polyhedra
Research Article-Electrical Engineering
Science
Transmission efficiency
Wireless power transmission
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Summary: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.
ISSN:2193-567X
1319-8025
2191-4281
DOI:10.1007/s13369-023-08346-y