改进发射端的磁耦合谐振式无线电能传输系统  

Magnetically Coupled Resonance Wireless Power Tansmission System of Improved Transmitter

作　　者：张申[1,2,3] 张震[1,2,3] 王习[1,2,3] 赵端[2,3] 杨优芳 丁恩杰[1,2,3] 

机构地区：[1]中国矿业大学(徐州)信息与电气工程学院,江苏徐州221008 [2]中国矿业大学(徐州)物联网(感知矿山)研究中心,江苏徐州221008 [3]中国矿业大学(徐州)矿山互联网应用技术国家地方联合工程实验室,江苏徐州221008

出　　处：《青岛科技大学学报（自然科学版）》2017年第3期113-118,共6页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：国家科技支撑计划项目(2013BAK06B05)

摘　　要：为提高磁耦合谐振式无线充电系统的传输效率,提出了改进发射端的无线电能传输模型并建立了无线电能传输系统电路模型,讨论了输出功率与传输效率与线圈耦合系数和负载电阻的关系。在线圈谐振状态下,为得到最佳传输效率,研究了耦合系数与负载电阻的取值要求。最后,通过搭建实验平台,验证了系统在谐振状态下,激励线圈与发射线圈的耦合系数为0.8,发射线圈与负载线圈的耦合系数为0.157,负载电阻为150Ω时,传输效率能达到97.3%。In order to improve the transmission efficiency of magnetically coupled resonant charging system, this paper proposes improved transmitter of radio energy transmission system model and establishes a circuit model of radio energy transmission system.The relationship between output power, transmission efficiency and coil coupling coefficient, load resistant is discussed.In the coil resonant state, the value of coupling coefficient and the load resistance is studied to obtain optimum transmission efficiency.Finally the experimental platform is built to verify that in the resonant state the transmission efficiency can reach 97.3% with the requirement of the coupling coefficient of excitation coil and the transmitting coil is 0.8, the coupling coefficient of transmitting coil and load coil is 0.157 and the load resistance is 150 Ω.

关 键 词：磁耦合谐振 无线电能传输 耦合系数 负载 

分 类 号：TD611[矿业工程—矿山机电]