子母弹线圈间耦合对无线传输效率的影响  

Effect of Intercoil Coupling of Submunitions on Wireless Transmission Efficiency

作　　者：杨刚 王利[1] 屈玉堂 YANG Gang;WANG Li;QU Yutang(School of Mechanical and Electrical Engineering,North University of China,Taiyuan 030051,China;Sichuan Huachuan Industrial Co.,Ltd.,Chengdu 610100,China)

机构地区：[1]中北大学机电工程学院,太原030051 [2]四川华川工业股份有限公司,成都610100

出　　处：《计算机测量与控制》2024年第4期257-263,共7页Computer Measurement &Control

摘　　要：在子母弹无线能量传输系统中,各个线圈间交叉耦合,使系统传输效率受到影响;通过建立并联谐振无线能量传输系统模型,在子弹线圈组间耦合很小的情况下,分析各个线圈间耦合对系统传输效率的影响,得到在最大传输效率时子弹线圈的频率条件;最后通过实验对推导公式呈现出的子弹线圈频率偏移方向,以及线圈间耦合对系统传输效率的影响进行了验证;结果表明,在对多个子弹线圈进行无线能量传输时,达到最大传输效率时子弹线圈的频率高于初始谐振频率;当子弹线圈与母弹线圈间距较大时,应采用多个母弹线圈对其传输能量;并且减小子弹和母弹线圈间距,可以提高系统最大传输效率。In the wireless energy transmission system of submunitions,there is the influence of coupling between coils on the transmission efficiency of the system.By establishing a parallel resonant wireless energy transmission system model,the coupling influence between bullet coils on the transmission efficiency of the system is analyzed with the minimal coupling between bullet coils,and the frequency condition of bullet coils is obtained at the maximum transmission efficiency.Finally,the influence of the bullet coil frequency offset direction and coil coupling on the transmission efficiency of the system is verified by the experiments.The results show that when the maximum transmission efficiency is reached,the frequency of the bullet coils is higher than the initial resonant frequency.With the large distance between the bullet coil and the mother round coil,the multiple mother round coils is used to transmit the energy.And the maximum transmission efficiency of the system can be improved by reducing the coil distance between the bullet and the mother round coils.

关 键 词：一对多 无线能量传输 并联谐振 传输效率 电磁耦合 

分 类 号：TJ431.3[兵器科学与技术—火炮、自动武器与弹药工程]