基于空间自由度的3个线圈磁共振无线电能传输模型

Wireless Power Transmission Model of Triple Coil Magentic Resonance Based on Spatial Freedom

传统的共轴磁共振电能传输模型存在空间位置自由度小的缺陷.分析传统模型的发射和接收装置在非共轴的条件下对电能传输效率的影响,提出一种改进的3个线圈磁共振无线电能传输模型.该模型成功地突破了传统共轴磁共振无线电能传输系统在空间位置上的限制,实验数据表明改进后的传输装置不仅提高了空间自由度,而且在轴线夹角-90°～90°范围内其最低效率较传统模式提高了43%以上,最高传输效率提高了5%.

The traditional coaxial magnetic resonance power transmission model is deficient for small spatial freedom.Through the analysis of the influence of launching and receiving system on transmission efficiency in mon-coaxial condition,the article puts forward an improved triple coil magnetic resonance power transmission model,which successfully breaks through the limits of the traditional coaxial magnetic resonance power transmission system in the space position.Experimental data show that the improved transmission device not only improves the spatial freedom,but also,in axial angle-90°～+90°,improves the lowest efficiency by more than 43% and the maximum transmission efficiency by 5%.