摘要
基于前期课题组研究的基础上,对四线圈无线电能传输函数和临界耦合系数进行电路理论和物理模型的仿真,提出减小模型中环与线圈的耦合系数(提高环与线圈的耦合距离),能够提高能量稳定高效传输的距离。使用这种方法,系统负载阻抗固定为50Ω,模型中环与线圈距离为22cm,稳定有效传输距离达1.48m,传输距离为0.1~1.8m,输能效率为76.1%~46.8%。
Based on previous studies of our research team,the transmission function and critical coupling coefficient of four-coil magnetic coupling wireless power transfer（WPT）system are investigated in this paper.The method of decreasing the coupling coefficient（increasing the distance）between matching loops and coils to improve the transmission distance effectively is proposed.Trough this method,the transmission distance is improved to 1.48 mwith fixed load of 50Ωand matching distance of 22 cm between loops and coils.The power transfer efficiency is maintained from 76.1%to 46.8% when the transmission distance is from 0.1 to 1.8 m.
作者
张金
刘飞
张鹏展
ZHANG Jin;LIU Fei;ZHANG Peng zhan(Jinling Institute of Technology,Nanjing 211169,China)
出处
《金陵科技学院学报》
2018年第3期19-22,共4页
Journal of Jinling Institute of Technology
基金
金陵科技学院高层次人才科研启动项目(jit-b-201719)
关键词
无线能量传输
磁耦合谐振器
等效电路
频率分离
临界耦合点
wireless power transfer
magnetic coupled resonator
equivalent circuit
frequency splitting
critical coupled coefficient
