摘要
在磁共振模式无线供电系统的实际应用中,通常要求系统输出电压保持恒定,为提高系统传输功率的稳定性,还需要系统工作频率保持恒定。本文以发射线圈为并联补偿、接收线圈以及共振线圈均为串联补偿的磁共振模式无线供电系统为研究对象,基于互感模型,给出了系统发射线圈恒流,输出电压恒压的参数边界条件,从而在不需要控制器的条件下,通过恒频驱动,在线圈之间距离不发生改变的前提下,能够保证负载变化时系统仍然能够处于恒压状态。仿真和实验表明所提出方法具有良好的恒压特性。
In the practical application of the magnetic resonance mode wireless power supply system,the constant output voltage is typically required.To improve the stability of the system transmission power,the system operating frequency usually should be remains constant too.In this paper,magnetic resonance mode wireless power supply system as the research object,in which the transmitter coil is parallel-compensation,while the receiving coil and the resonance coils are series-compensated.Based on the the mutual inductances model,the parametric boundary conditions for keeping the system transmitting coil current and output voltage constant is given.So that under conditions of no controller,by constant frequency driving and not changing the distance between the coils,the system still be able to run in the constant voltage state as the load changes.Through simulation and experimental results show that the proposed method has good constant voltage characteristics.
出处
《电工技术学报》
EI
CSCD
北大核心
2014年第9期12-16,共5页
Transactions of China Electrotechnical Society
基金
国家自然科学基金资助项目(51207173
51277192)
关键词
磁共振模式
互感耦合
边界条件
恒压特性
Magnetic resonance mode
mutual inductance coupling
boundary condition
constant voltage characteristics
