具有恒压特性的磁共振模式无线供电系统

发布时间：2018-11-22 07:34

【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。
[Abstract]:In the practical application of magnetic resonance mode wireless power supply system, the output voltage is usually required to keep constant. In order to improve the stability of transmission power, it is also necessary to maintain the constant operating frequency of the system. In this paper, the transmission coils are used as parallel compensation, the receiving coils and resonance coils are all compensated in series, and the magnetic resonance mode wireless power supply system is studied. Based on the mutual inductance model, the constant current of the transmitting coils of the system is given. The parameter boundary condition of the output voltage constant voltage can ensure that the system can still be in constant voltage state under the condition that the controller is not needed and the distance between the loops is not changed by the constant frequency drive. Simulation and experiments show that the proposed method has good constant voltage characteristics.
【作者单位】： 重庆大学自动化学院;
【基金】：国家自然科学基金资助项目(51207173,51277192)
【分类号】：TM724
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本文编号：2348521