动态无线电能传输系统补偿电容优化设计

Optimization design of compensation capacitor for dynamic wireless power transfer system

为了提高单逆变器、多发射线圈并联的分段导轨式动态无线供电系统输出功率,负载利用双接收线圈进行供电,但系统的功率和效率会受到相邻发射和相邻接收线圈间互感的影响。因此,基于LCC/串联(LCC/series,LCC/S)补偿的双发射双拾取线圈,针对相邻线圈间的交叉互感对系统特性影响,提出一种补偿电容优化设计方法,该方法可以有效的提高系统的输出功率和效率。最后,通过搭建无线电能传输系统实验平台,验证了该补偿电容优化方式的有效性,补偿电容优化后,功率提高了41.3%,效率提高了8.8%。

In order to improve the output power of the segmented rail type dynamic wireless power supply system with single inverter and multiple transmitting coils in parallel,dual receiving coils are used to supply power to the load,but,the power and efficiency of the system are affected by the mutual inductance between adjacent coils.Therefore,based on the LCC/series(LCC/S)compensated dualtransmitting dual-receiving coils,considering the influence of cross-inductance between the adjacent receiving coils and the transmitting coils on system characteristics,a compensation capacitor optimization design method is proposed,which can effectively improve the output power and efficiency of the system.Finally,the effectiveness of the compensation capacitor optimization method is verified by building a wireless power transfer system experimental platform,after the compensation capacitor is optimized,the power is increased by 41.3%and the efficiency is increased by 8.8%.