The invention discloses an electric vehicle charging system. The system comprises a power supply, a three-phase converter, a single-phase power grid, a three-phase motor, a wireless receiving module,a first contactor, a second contactor and a third contactor. The power supply is connected in parallel with the three-phase converter. The three-phase converter comprises three bridge arms connected in parallel, and each bridge arm comprises two power switches connected in series. Two ends of the first contactor are respectively connected with the single-phase power grid and the midpoint of the two bridge arms of the three-phase converter. The two ends of the second contactor are connected with the three-phase motor and the midpoint of the three bridge arms of the three-phase converter respectively. The two ends of the third contactor are connected with the wireless receiving module and the midpoint of the two bridge arms of the three-phase converter respectively. The system is simple in structure, the power supply can be charged in various modes without using various devices, and the production cost is low.
本发明公开了一种电动汽车充电系统,该系统包括:电源、三相变换器、单相电网、三相电机、无线接收模块、第一接触器、第二接触器、第三接触器。电源与三相变换器并联。三相变换器包括三个并联的桥臂,且每个桥臂包括两个串联的功率开关。第一接触器的两端分别与单相电网和三相变换器两个桥臂的中点连接。第二接触器的两端分别与三相电机和三相变换器三个桥臂的中点连接。第三接触器的两端分别与无线接收模块和三相变换器两个桥臂的中点连接。本发明结构简单,无需使用多种器件即可实现在多种模式下对电源进行充电,生产成本较低。
Electric vehicle charging system
一种电动汽车充电系统
2021-02-02
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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