The invention discloses an electric vehicle dynamic wireless charging power control method adapting to driving power. The method comprises the steps: control parameters and the driving speed of the electric vehicle are obtained, the vehicle-mounted end receiving power of the electric vehicle is calculated, the real-time driving power of the electric vehicle is calculated, the vehicle-mounted end receiving power compensates for the driving power of the electric vehicle in real time, and a critical load value corresponding to the driving speed is obtained through calculation; and the equivalentload value of the vehicle end is adjusted to a critical load value corresponding to the driving speed through a rectification and load matching unit, so that the dynamic wireless charging power control of the electric vehicle adapting to the driving speed in the dynamic wireless charging area is realized. Real-time compensation of the driving power of the electric vehicle is taken as a target; theequivalent load resistance of the vehicle end is adjusted through an impedance matching unit, dynamic wireless charging power control over the electric vehicle adapting to the driving speed in the dynamic wireless charging area is achieved, and the problem that charging energy is not matched with the actual energy requirement of the vehicle under the variable-speed dynamic wireless charging condition of the electric vehicle is solved.
本发明公开了一种适应驱动功率的电动汽车动态无线充电功率控制方法,包括获取控制参数及获取电动汽车的行驶速度,计算电动汽车车载端接收功率,计算电动汽车实时驱动功率,以车载端接收功率实时抵偿电动汽车驱动功率,计算得到行驶速度对应的临界负载值;通过整流和负载匹配单元将车端等效负载值调节为行驶速度对应的临界负载值,实现动态无线充电区域内适应行车速度的电动汽车动态无线充电功率控制。本发明以实时抵偿电动汽车驱动功率为目标,通过阻抗匹配单元调节车端等效负载电阻,实现动态无线充电区域内适应行车速度的电动汽车动态无线充电功率控制,解决电动汽车变速动态无线充电情况下充电能量与车辆实际能量需求不匹配的问题。
Electric vehicle dynamic wireless charging power control method adapting to driving power
一种适应驱动功率的电动汽车动态无线充电功率控制方法
2020-05-08
Patent
Electronic Resource
Chinese
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