[1]李炜昕,张 合.基于磁耦合共振的无线能量传输特性分析[J].南京理工大学学报(自然科学版),2014,38(01):118-122.
　Li Weixin,Zhang He.Analysis on transmission characteristics of wireless power transmission system based on magnetic resonant coupling[J].Journal of Nanjing University of Science and Technology,2014,38(01):118-122.
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基于磁耦合共振的无线能量传输特性分析
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《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

卷:
38卷
期数:
2014年01期
页码:
118-122
栏目:
出版日期:
2014-02-28

文章信息/Info

Title:
Analysis on transmission characteristics of wireless power transmission system based on magnetic resonant coupling
作者:
李炜昕; 张 合
南京理工大学 智能弹药技术国防重点学科实验室,江苏 南京 210094
Author(s):
Li Weixin; Zhang He
ZNDY of Ministerial Key Laboratory,NUST,Nanjing 210094,China
关键词:
磁耦合共振;  无线能量传输;  共振频率;  频率分叉
Keywords:
magnetic resonant coupling;  wireless power transmission;  resonance frequency;  frequency splitting
分类号:
TM724; TN919
摘要:
为了提高磁耦合共振系统的能量传输效率,通过研究系统无线能量传输特性,探索了系统传输效率随耦合距离变化的规律。基于二端口网络分析方法,建立了磁耦合共振无线能量传输的等效电路模型,求解出共振系统发生频率分叉现象产生的条件以及最大效率时的频率表达式。通过数值仿真对共振系统传输特性进行了分析,揭示了系统的固有共振频率会随着耦合距离的增加,由两个相差较远的共振频率逐渐靠近,直至跨越临界条件,汇聚为一个共振频率的规律。实验结果与理论分析吻合,所建理论模型能够准确描述整个共振系统的能量传输特性。结论可为优化磁耦合共振无线能量传输系统工作效率提供理论依据。
Abstract:
In order to improve energy transmission efficiency of wireless power system based on magnetic resonant coupling,the relationship between transmission efficiency and coupling distance is researched studying the transmission characteristics of wireless power system.The equivalent circuit model of wireless power transmission system via magnetic resonance coupling is analyzed contactless based on the two-port network analysis method.The condition of the resonant frequency splitting phenomenon is produced,a contactless power transmission system is deduced,and the frequency expression of maximum efficiency is derived.The transmission characteristics of this system are researched using numerical simulation.The law that two quite different resonant frequencies turn into one until the critical condition is revealed and resonant frequency is increased gradually with the coupling distance under the condition of optimum efficiency.Experimental results show that the transmission characteristics are consistent with theoretical analysis and simulation.The model can describe the transmission characteristics of the power transmission system accurately,and provide theoretical support for the magnetic resonant coupling system.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2012-05-29 修回日期:2012-07-17
基金项目:国家自然科学基金(61104185)
作者简介:李炜昕(1986-),男,博士生,主要研究方向:武器系统信息交联技术,E-mail:weixin_li@126.com; 通讯作者:张合(1957-),男,教授,博士生导师,主要研究方向:引信智能与灵巧化技术,E-mail:hezhangz@mail.njust.com.cn。
引文格式:李炜昕,张合.基于磁耦合共振的无线能量传输特性分析[J].南京理工大学学报,2014,38(1):118-122.
投稿网址:http://njlgdxxb.paperonce.org
更新日期/Last Update: 2014-02-28