Automatic frequency tuning wireless charging system for enhancement of efficiency

被引：21

作者：

Kar, D. P. ^{[1
]}

Nayak, P. P. ^{[1
]}

Bhuyan, S. ^{[1
]}

Panda, S. K. ^{[2
]}

机构：

[1] Siksha O Anushandhan Univ, Inst Tech Educ & Res, Dept Elect & Instrumentat Engn, Bhubaneswar 751030, Orissa, India

[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore

来源：

ELECTRONICS LETTERS | 2014年 / 50卷 / 24期

关键词：

POWER TRANSFER SYSTEM;

D O I：

10.1049/el.2014.2962

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An automatic frequency-tuned wireless charging system is proposed and successfully demonstrated to enhance the power transfer efficiency for different vertical spacings between the charging coils in the presence of proximal metallic objects. The frequency characteristics of wireless power transfer efficiency have been investigated through simulation and experimental measurements. It has been observed that the resonance-based wireless charging system is very sensitive to the imperfect positioning of charging coils and nearby metallic objects. At the operating frequency, the power transfer efficiency of the charging system reduces drastically. However, by allowing the transmitting frequency to adapt to the position of the coils and metallic objects through the automatic frequency-tuned system, the deteriorated power transfer efficiency is further improved.

引用

页码：1868 / U235

页数：2

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