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【24h】 Analytical and Experimental Investigations of Omnidirectional Wireless Power Transfer Using a Cubic Transmitter

【摘要】In recent years, wireless power technology has been promoted for recharging systems for portable devices that are used in everyday life. The conventional technology used for this purpose, which is based on magnetically coupled resonators, has provided promising results but is limited in range and direction at the receiving terminal. In this paper, we propose an omnidirectional wireless power transfer (WPT) system with a novel cubic transmitter to achieve relatively high efficiency. Specifically, a single power source is utilized to drive the current of the transmitter without phase and current control methodology. Energy delivery is transmitted to the receiver through magnetic resonant coupling in the medium-range WPT mode. In addition, an equivalent circuit model of a coupling two-coil system is derived and mathematically analyzed. The efficiency of the proposed omnidirectional WPT system depending on the various distances between the transmitter and the receiver, as well as the transmitter structure, is evaluated via analysis and implementation. Finally, practical experimental results from the resonant coupling system confirm the theoretical analysis of the cubic transmitter and the omnidirectional power transfer capability, which demonstrate approximately 60% power transfer efficiency.

【期刊名称】 Industrial Electronics, IEEE Transactions on

【作者】Nam Ha-Van;Chulhun Seo;

【作者单位】;

【收录信息】;

【年(卷),期】2018(65),2

【年度】2018

【页码】1358-1366

【总页数】9

【原文格式】PDF

【正文语种】eng

【中图分类】;

【关键词】Coils;Magnetic resonance;Magnetic separation;Wires;Couplings;Inductance;Transmitters;

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