Magnetic coupling resonance wireless power transmission control scheme with maximum receiving efficiency

The invention relates to the technical field of electrical engineering, in particular to a magnetic coupling resonance wireless electric energy transmission control scheme with the maximum receiving efficiency, and the technical scheme is applied to a multistage coil wireless electric energy transmission system. The system uses the phase-locked loop to carry out phase detection and frequency adaptive adjustment, and the adjustment speed is fast. A reference signal and a feedback signal of the phase-locked loop are respectively a load-level voltage signal and a current signal, and the working frequency of the system can be adjusted in time when the load changes, so that the system keeps a high-efficiency working state. 本发明涉及电气工程领域技术领域，具体为一种具有接收效率最大化的磁耦合谐振无线电能传输控制方案，该技术方案应用于多级线圈无线电能传输系统。系统利用锁相环进行相位检测与频率自适应调节，调节速度较快；锁相环的参考信号及反馈信号分别为负载级的电压信号与电流信号，负载变化时能够及时调整系统工作频率，使得系统保持高效率的工作状态。