The invention relates to the technical field of dynamic wireless charging of electric vehicles, and particularly discloses an EV-DWPT system with passive coils and compensation capacitors thereof, which is characterized in that the passive coils and the compensation capacitors thereof are placed between ground transmitting coils, and stable output power during switching of adjacent transmitting coils is realized by configuring the compensation capacitors. When the pickup coil travels to the switching position of the adjacent transmitting coils, the induced voltage vector of the vehicle-mounted pickup end is composed of the induced voltage vector provided by the ground transmitting coil and the induced voltage vector provided by the passive coil. According to the system, the amplitude and the phase angle of an induced voltage vector provided by a compensation capacitor of a passive coil are adjusted by configuring the compensation capacitor, vector synthesis is carried out on the vector and the induced voltage provided by a transmitting coil, the amplitude of the induced voltage vector of a vehicle-mounted pickup end can be adjusted, and stable output power is achieved. The system is simple in structure, does not need a power control link, and is more suitable for a rapid EV-DWPT system.
本发明涉及电动汽车动态无线充电技术领域,具体公开了一种带有无源线圈及其补偿电容的EV‑DWPT系统,通过在地面发射线圈之间放置无源线圈和其补偿电容,并通过配置补偿电容实现相邻发射线圈切换时的稳定输出功率。当拾取线圈行驶至相邻发射线圈切换处时,车载拾取端的感应电压矢量由地面发射线圈提供的感应电压矢量和无源线圈提供的感应电压矢量两部分组成。本系统通过配置无源线圈的补偿电容来调节由它提供的感应电压矢量的幅值和相角,与发射线圈提供的感应电压进行矢量合成,可以调整车载拾取端感应电压矢量的幅值,实现稳定的输出功率。该系统结构简单,不需要功率控制环节,更适用于快速的EV‑DWPT系统。
EV-DWPT system with passive coil and compensation capacitor thereof
一种带有无源线圈及其补偿电容的EV-DWPT系统
2023-05-26
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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