磁耦合谐振式无线供电系统研究
发布时间：2018-07-27 09:40
【摘要】：磁耦合谐振式无线供电技术作为一种前沿的非接触式供电技术,该技术不但克服了有线电能传输的局限性,也克服了感应式与辐射式无线供电的固有缺点,成为目前的热门研究课题。磁耦合谐振无线供电系统主要靠线圈之间的磁耦合来传输电能,其传输过程中不涉及任何的导线连接,可以很好地避免外界环境因素的干扰。其相比于其他传输方式在传输特性上具有明显的优势,可以更好的实现无线供电技术的推广与应用。本文主要研究了磁耦合谐振无线供电系统的基本原理和传输特性,通过基本原理建立了磁耦合谐振无线供电系统的四种基本拓扑结构,对四种基本结构下系统传输效率进行理论分析。同时分析了耦合系数、损耗系数、品质因数以及频率对系统传输特性的影响,通过matlab仿真软件对各参数之间关系进行仿真,得到各参数与传输效率之间的关系。通过对这些特性的研究对添加中继线圈的磁耦合谐振供电系统进行耦合模分析,理论上得到添加中继线圈后可以有效提高系统的传输距离和传输效率,对系统的传输特性具有很好的提升作用。根据分析与研究确定系统设计需要的各项元器件与模块,对系统进行硬件的搭建,测试其硬件电路在添加中继线圈前后各模块的输出电压,系统传输效率以及线圈之间的距离,最后测试结果分析证明了设计系统的可行性以及添加中继线圈后可以有效提高系统的传输距离和传输效率。
[Abstract]:As a kind of advanced non-contact power supply technology, the magnetically coupled resonant wireless power supply technology not only overcomes the limitation of wired power transmission, but also overcomes the inherent shortcomings of inductive and radiative wireless power supply. It has become a hot research topic at present. The magnetic coupling resonance wireless power supply system mainly relies on the magnetic coupling between the coils to transmit the electric energy. It does not involve any wire connection in the transmission process, so it can avoid the interference of the external environment factors. Compared with other transmission modes, it has obvious advantages in transmission characteristics, and can better realize the popularization and application of wireless power supply technology. This paper mainly studies the basic principle and transmission characteristics of the magnetic coupling resonance wireless power supply system, and establishes four basic topologies of the magnetic coupling resonance wireless power supply system through the basic principle. The transmission efficiency of the system under four basic structures is analyzed theoretically. At the same time, the effects of coupling coefficient, loss coefficient, quality factor and frequency on the transmission characteristics of the system are analyzed. The relationship between the parameters and the transmission efficiency is simulated by matlab simulation software, and the relationship between the parameters and the transmission efficiency is obtained. Through the study of these characteristics, the coupled mode analysis of the magnetically coupled resonant power supply system with the addition of relay coils is carried out, and it is obtained theoretically that the transmission distance and transmission efficiency of the system can be effectively improved by adding the trunk coil. It can improve the transmission characteristics of the system. According to the analysis and research, the components and modules needed for the system design are determined, the hardware of the system is built, the output voltage of each module before and after adding the trunk coil, the transmission efficiency of the system and the distance between the coils are tested. Finally, the analysis of test results proves the feasibility of designing the system and the increase of transmission distance and efficiency after adding trunk coil.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM724
[Abstract]:As a kind of advanced non-contact power supply technology, the magnetically coupled resonant wireless power supply technology not only overcomes the limitation of wired power transmission, but also overcomes the inherent shortcomings of inductive and radiative wireless power supply. It has become a hot research topic at present. The magnetic coupling resonance wireless power supply system mainly relies on the magnetic coupling between the coils to transmit the electric energy. It does not involve any wire connection in the transmission process, so it can avoid the interference of the external environment factors. Compared with other transmission modes, it has obvious advantages in transmission characteristics, and can better realize the popularization and application of wireless power supply technology. This paper mainly studies the basic principle and transmission characteristics of the magnetic coupling resonance wireless power supply system, and establishes four basic topologies of the magnetic coupling resonance wireless power supply system through the basic principle. The transmission efficiency of the system under four basic structures is analyzed theoretically. At the same time, the effects of coupling coefficient, loss coefficient, quality factor and frequency on the transmission characteristics of the system are analyzed. The relationship between the parameters and the transmission efficiency is simulated by matlab simulation software, and the relationship between the parameters and the transmission efficiency is obtained. Through the study of these characteristics, the coupled mode analysis of the magnetically coupled resonant power supply system with the addition of relay coils is carried out, and it is obtained theoretically that the transmission distance and transmission efficiency of the system can be effectively improved by adding the trunk coil. It can improve the transmission characteristics of the system. According to the analysis and research, the components and modules needed for the system design are determined, the hardware of the system is built, the output voltage of each module before and after adding the trunk coil, the transmission efficiency of the system and the distance between the coils are tested. Finally, the analysis of test results proves the feasibility of designing the system and the increase of transmission distance and efficiency after adding trunk coil.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM724
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