全方位无线电能传输系统设计

Design of omnidirectional wireless power transfer system

针对泛在监测背景下低成本、复杂度低的全方位无线电能传输系统需求,从线圈设计角度提出了一种使用单电源的全方位无线电能传输系统。该系统发射线圈设计为一条导线制成的六面连通立方体,接收线圈为单个矩形线圈。通过磁场分布和互感特性的仿真分析,选择了最优的全方位线圈结构。实验表明在发射线圈任意角度传输功率和效率均能满足无线电能传输系统要求。最终从传输距离和传输角度两个方面,总结了全方位系统的电能传输规律,为接收线圈的最佳安装范围提供依据。

Aiming at the demand for a low-cost,low-complexity omnidirectional wireless power transfer system under the background of ubiquitous monitoring,an omnidirectional wireless power transfer system using a single power source is proposed from the perspective of coil design.The transmitting coil of this system is designed as a six-side connected cube made of one wire,and the receiving coil is a single rectangular coil.The optimal coil structure is selected through the simulation analysis of magnetic field distribution and mutual inductance characteristics.Experimental results show that transfer power and efficiency at any angle of transmitter coil can meet the requirements of wireless power transfer system.The omnidirectional power transfer law is summarized from the two aspects of transfer distance and angle,which provides basis for the installation range of optimal receiver coil.