小型谐振器无线电能传输系统研究  

Study of wireless power transmission system of small size resonator

作　　者：樊英杰[1,2] 张开如[1,2] 狄东照 顾华利 韩璐[1,2] 

机构地区：[1]山东科技大学电气与自动化工程学院,山东青岛266590 [2]山东科技大学矿山灾害预防控制省部共建国家重点实验室培养基地,山东青岛266590

出　　处：《工矿自动化》2016年第3期48-51,共4页Journal Of Mine Automation

基　　金：国家(中国-南非)科技合作项目(CS06-L02);"十二五"国家科技支撑计划项目(2012BAB13B04);山东科技大学研究生创新基金项目(YC140211)

摘　　要：针对目前小型无线充电设备的传输效率随发射端和接收端距离的变化而波动的问题,根据无线能量传输系统数学模型,分析了频率分裂的相关因素。在发生频率分裂时不改变谐振频率和阻抗参数的条件下,通过调整两谐振线圈的径向距离来削弱两线圈的互感系数,从而抑制频率分裂现象,提高传输效率。最后搭建了小型谐振器无线电能传输系统实验平台。实验结果表明,该系统可成功对负载进行充电,具有良好的传输性能,适用于小型无线能量传输设备。In view of the problem that transmission efficiency of small wireless charging devices changes with distance between transmitter and receiver, relevant factors of frequency splitting were analyzed according to mathematic model of wireless energy transmission system. Under the condition that resonant frequency and impedance parameters do not change when frequency splitting occurs, mutual inductance of two resonance coils can be reduced by adjusting radial distance of the two coils, so as to inhibiting frequency splitting phenomenon and improve transmission efficiency. Finally, experiments platform of wireless power transmission system of small size resonator was set up, and the experimental results show that the system can successfully charge the load with good transmission performance, which is suitable for small wireless energy transmission equipment.

关 键 词：小型谐振器 无线电能传输 频率分裂 径向距离 

分 类 号：TD655.3[矿业工程—矿山机电]