南京理工大学学报（自然科学版）Issue(1)：118-122,5.
基于磁耦合共振的无线能量传输特性分析
Analysis on transmission characteristics of wireless power transmission system based on magnetic resonant coupling
摘要
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 phe-nomenon 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.关键词
磁耦合共振/无线能量传输/共振频率/频率分叉Key words
magnetic resonant coupling/wireless power transmission/resonance frequency/frequency splitting分类
信息技术与安全科学引用本文复制引用
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,(1):118-122,5.基金项目
国家自然科学基金(61104185) （61104185）
