The invention discloses an electric vehicle high-power direct current charging station and a control optimization method thereof, and the method comprises the following steps: inputting an external three-phase alternating current into a Vienna rectifier serving as a pre-stage charging circuit, and inputting an output voltage value of the Vienna rectifier into a pre-stage control circuit; after the pre-stage control circuit obtains an output voltage value of the Vienna rectifier, the direction of the voltage is determined, synthesis is carried out by adopting a nearest three-vector method and utilizing three basic voltage vectors closest to a target voltage vector, a three-level SVPWM algorithm based on a two-level theory is adopted in the synthesis process, and finally the action time of the target voltage vector is obtained. And therefore, the Vienna rectifier can be controlled. The operation burden of the control system is reduced, the power grid loss is reduced, and the stability and efficiency of power grid operation are improved.
本发明公开了一种电动汽车高功率直流充电站及其控制优化方法,包括以下过程:外部的三相交流电输入至作为前级充电电路的Vienna整流器中,Vienna整流器的输出电压值输入至前级控制电路;前级控制电路获取Vienna整流器的输出电压值后,先确定电压的方向,采用最近三矢量法,利用最接近目标电压矢量的三个基础电压矢量来合成,合成过程中采用基于两电平理论的三电平SVPWM算法,最终得到目标电压矢量的作用时间,从而对Vienna整流器进行控制。降低了控制系统的运算负担,有助于降低电网损耗并提高电网运行的稳定性和效率。
High-power direct-current charging station for electric vehicle and control optimization method of high-power direct-current charging station
一种电动汽车高功率直流充电站及其控制优化方法
30.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Full-direct-current electric vehicle charging station
Europäisches Patentamt | 2022
|Electric vehicle charging station based on high-voltage direct-current power distribution
Europäisches Patentamt | 2023
|Direct current charging pile, charging control method and charging station
Europäisches Patentamt | 2021
|Europäisches Patentamt | 2025
|