磁耦合谐振式无线能量传输效率分析  

Efficiency of wireless power transfer based on magnetic coupling resonance

作　　者：王娜[1] 唐堂[1] 张兆东[1] 刘景夏[1] 胡冰新[1] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007

出　　处：《解放军理工大学学报（自然科学版）》2015年第5期413-417,共5页Journal of PLA University of Science and Technology(Natural Science Edition)

摘　　要：为分析无线能量传输的效率问题,利用电磁仿真软件HFSS,建立了单个线圈模型,利用单个谐振线圈模型构建了基于磁耦合谐振的能量传输系统。通过S参数曲线直观反映能量传输效率的变化规律,验证了磁耦合谐振式能量传输效率远远大于一般的感应耦合。通过改变模型中两线圈的相对位置,分析了线圈距离、夹角等因素对能量传输效率的影响,依据效率变化曲线,直观展示了频率分裂现象。仿真和分析表明,为实现系统的高效率、远距离能量传输,应尽量减小收发线圈的角度和线圈的错位偏移量,该系统为设计和优化无线电能传输系统提供了一种理论分析方法。To analyze the efficiency of wireless power transfer,the single coil model was built using the electromagnetic simulation software HFSS（high frequency structure simulator）,and the power transfer system based on magnetic coupling resonance with the single resonant coil model was established.The change regulation of power transfer efficiency was reflected intuitively through the Sparameter curves.It is verified that magnetic resonant power transfer efficiency is much higher than that of the general induction coupling.By changing the relative position of the two coils,the relationship between the power transfer efficiency and the relative position of the two coils such as distance,angel,etc was analyzed.On the basis of the efficiency curve,the phenomenon of frequency splitting was shown intuitively.Simulation shows that the angle of the coils and offset distance should be reduced to realize the high efficiency and long distance transmission.The study provides a theoretical analysis method for the design and optimization of wireless power transfer system.

关 键 词：磁耦合 谐振 能量传输 高频结构仿真 S参数 

分 类 号：TM72[电气工程—电力系统及自动化]