电动汽车多导轨无线供电方法

针对单段长导轨供电方式会降低电动汽车无线供电系统的稳定性和效率的问题,提出了多导轨供电模式的电动汽车无线供电方法,输电导轨采用多级并联的方式连接在输电母线上,电动汽车行驶到某段输电导轨上方时,该输电导轨处于工作状态,其他输电导轨处于待机状态。文中详述了系统的基本原理,并通过实验结果验证了方法的有效性,结果进一步表明所述方法保证了能量拾取端的功率等级,同时降低了导轨的通电长度,并降低了导轨损坏对系统稳定性及导轨损耗对系统效率的影响。

Wireless Power Supply Method for Multi-rail-based Electric Vehicles

As single long rail supply method will reduce the stability and efficiency of the electric vehicle wireless power supply system, a wireless power supply method for multi-rail-based electric vehicle is proposed. The multiple transmission rails are in parallel with the bus. The transmission rail is active when the electric vehicle is just over the rail, with the other rails at stand-by. Its principle is described in detail, and the effectiveness of the proposed method is verified by the experimental results. The test results show that the power level of the pick-up port is ensured by the proposed method, the length of active rail is cut, the influence of rails'' damage to system stability and the effect of wear and tear of rails on the efficiency of the system are reduced.