Design and analysis of a wireless power transmission system with magnetic coupling resonance in the weak-coupling region

被引：1
|
作者：
Song D. [1 ]
Shi F. [1 ]
Dai S. [2 ]
Liu L. [1 ]
机构：
[1] School of Electrical Engineering and Automation, Tianjin Polytechnic University, Tianjin
[2] College of Electrical Engineering and New Energy, China Three Gorges University, Yichang
来源：
Chinese Journal of Electrical Engineering | 2019年 / 5卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Coil design; Frequency splitting; Weak-coupling region; Wireless power transfer;
D O I：
10.23919/CJEE.2019.000027
中图分类号：
学科分类号：
摘要：
The magnetically coupled resonant wireless power transfer (MCR-WPT) system for implantable medical devices has gradually become one of the research hotspots. The transmission characteristics of the system in weak-coupling regions are of research significance. The mathematical model of the system's transmission characteristics is established by equivalent circuit theory. Several key factors that affect the transmission characteristics of the system are obtained, to include the self-inductance of the coil, the mutual inductance between the coils, and the load resistance. A magnetically coupled resonant wireless power transfer system is designed. A method of coil design is proposed. The transmission efficiency of the system in the weak-coupling region is improved by optimizing the design of the coil. Simulation and experimental results exhibited good consistency. The results show that the transmission performance of the system in the weak-coupling area is improved. This work provides guidance and practical significance for the research of the MCR-WPT system with implantable medical equipment. © The Author(s), 2019.
引用
收藏
页码：51 / 60
页数：9
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