摘要无线电能传输一直以来便是人类的理想,2007年麻省理工的研究人员用磁共振耦合的方式成功实现了米级距离的无线电能传输,开创了无线电能传输的新时代。磁共振耦合式无线能量传输利用近区磁场的耦合和共振原理实现电能无线传输,而且高效安全。这一技术将在诸多领域具有应用意义,极具研究价值。
本文主要对复杂条件下的磁共振耦合无线能量传输系统进行了研究,通过建立数学模型,使用MATLAB和Orcad软件进行数值仿真和电路仿真。首先,通过改变收发端耦合系数,得到输出功率、效率与收发端耦合系数的关系;接着对双接收端系统的传输特性进行了分析,得出了接收端之间的交叉耦合对系统传输特性的影响规律;最后,以两种不同的模型系统为基础,采用将金属障碍等效为电感电阻串联回路的方法研究了当系统周围存在金属障碍时系统的传输特性,得出了金属障碍与系统耦合系数、金属障碍等效电感和电阻不同时对系统的影响规律。21804
关键词 磁共振耦合 无线能量传输 双接收端 金属障碍
毕业论文设计说明书(论文)外文摘要
Title Characteristic of wireless power transmission using
magnetic resonance coupling under complex condition
Abstract
Wireless power transmission has always been the idea of human,in 2007,researchers at MIT used the way of magnetic resonance coupling successfully to achieve wireless power transmission in meter level,pioneered the new age about the research in wireless power transmission.wireless power transmission using magnetic resonance coupling is a technique ,which is based on near-field magnetic coupling and resonance to realize wireless transmission of electric power safely and efficiently. This technology has application prospect in many fields and great research significance .
This paper mainly studies on the transmission characteristics under the condition of complicated by establishing the mathematical model and the software of MATLAB and Orcad to conduct the numerical simulation and circuit simulation.First studies the problem of the transmission characteristics by changing the coupling coefficient and gets the conclusion of relationship between the deliver and receiving end coupling coefficient and output power and efficiency.And then studies the transmission characteristics of the double receiving end system and what is the influence to the system when the receiving end cross coupling.In the final,based on two different models ,analysis the transmission characteristics in condition of the metal obstacles around the system by equivalent the metal obstacles to the series circuit composed of a resistance and an inductance ,comes to a conclusion of how the coupling coefficient between the metal obstacles and the system、the equivalent resistance and the equivalent inductance influence the system.
Keywords magnetic resonance coupling、wireless power transmission、double receiving end、metal obstacle
目 录
1 绪论 1
1.1 选题背景和意义 1
1.2 国内外研究现状 2
1.2.1国外研究现状 2
1.2.1.1麻省理工大学研究成果 2
1.2.1.2不列颠哥伦比亚大学研究成果 4
1.2.1.3日本东京大学研究成果 4
1.2.1.4国外其它研究成果 5
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