应用动态解耦技术的ICPT系统输出功率调节方法

针对感应耦合电能传输系统输出功率实时和动态的调节问题,提出了一种基于动态解耦技术的新型功率调节方法。在无线电能传输系统的副边整流电路中加入2个全控型开关管,通过控制整流电路两侧开关管的导通与关断,即调节2个开关管的占空比使得负载侧与谐振网络的动态解耦,实现对谐振网络输出电压的不连续调节,进而达到调节输出功率大小的目的。通过对比调频、调幅、移相以及能量注入控制4种常用功率调节方法的工作原理和特征,该方法在快速性、复杂度、体积、成本等方面都具有其他调节方式不可比拟的优势。最后,通过仿真和实验验证了理论分析的正确性和方案的可行性。

Dual output power regulation method based on dynamic decoupling

For the real-time and dynamic adjustment of output power for inductively coupled power transfer systems, a new power adjustment method based on dynamic decoupling technology is proposed. Two full-control switching tubes are added to the secondary side rectifier circuit of the wireless energy transmission system, and the switching between the switching tubes on both sides of the rectifier circuit is controlled, that is, the duty ratio of the two switching tubes is adjusted so that the load side and the resonant network are dynamically decoupled, thereby realizing the discontinuous adjustment of the output voltage of the resonant network and achieving the purpose of adjusting the output power. Compared with the four common power adjustment methods: frequency modulation, amplitude modulation, phase shifting and energy injection, the method proposed above has incomparable advantages in terms of speed, real-time, complexity, volume and cost. Finally, the correctness of the theoretical analysis and the feasibility of the scheme are verified by simulation and experiment.