Efficient Shielding Design and Optimization of Wireless Power Transfer System with Proximity Coupling

被引：0
|
作者：
Li R. [1 ,2 ]
Yang Q. [1 ,3 ]
Li Y. [1 ,2 ]
Yuan Z. [1 ,2 ]
Zhang P. [1 ,2 ]
机构：
[1] State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin
[2] Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, School of Electrical Engineering, Hebei University of Technology, Tianjin
[3] Tianjin University of Technology, Tianjin
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2019年 / 43卷 / 21期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
Proximity coupling; Resonant shielding coil; Shielding method; Transmission efficiency; Wireless power transmission (WPT);
D O I：
10.7500/AEPS20190113003
中图分类号：
学科分类号：
摘要：
In the practical application of wireless power transmission (WPT), multiple WPT systems which are close in distance, can work simultaneously as a normal application scenario. However, proximity coupling caused by mutual coupling of leakage magnetic field from adjacent systems brings disturbances to resonant parameters. These parameter fluctuations will reduce the system transmission efficiency. In order to solve this problem, a resonant shielding coil is designed to eliminate proximity coupling between systems. Its working principle and effect on improving the proximity coupling and transmission efficiency are analyzed. Both simulation and experiment are conducted to compare how the shape and number of turns of shielding coil affect the effectiveness of shielding. Then the shielding coil structure is optimized. The results show that the square-shape shielding coil has a good performance in reducing the parameter disturbances caused by proximity coupling, which helps system tune for improving the transmission efficiency of WPT system with proximity coupling. © 2019 Automation of Electric Power Systems Press.
引用
收藏
页码：163 / 169
页数：6
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