磁共振无线电能传输系统最大传输距离的电路参数分析

Circuit Parameter Analysis of Maximum Transfer Distance of Magnetic Resonance Wireless Power Transmission Systems

对磁共振无线电能传输系统的最大传输距离问题进行了电路模型研究,先描述了与最大传输距离密切相关的频率分裂现象,进而定义了频率分裂方程、脊方程、谷方程,随后利用脊方程确定了系统的频率分裂临界点,频率分裂临界点对应的传输距离就是系统的最大传输距离。探讨了系统最大传输距离与系统关键参数的关系。最后,利用文献中已有的实验数据,对上述理论进行了实验验证。

Circuit analysis is employed to investigate the maximum transfer distance problem in magnetic resonance wireless power transmission systems.It is described firstly the frequency splitting phenomena that are closely related to the maximum transfer distance problem.Next,the splitting equation,the ridge equation and the trough equation are defined,and the critical splitting point is found through the ridge equation.The maximum transfer distance is uniquely determined by the critical splitting point,and the relationship between the maximum transfer distance and the key system parameters is elucidated.Finally,above theory is validated by the experimental data from the literature.