The DC charging pile is 220V. The power of the DC charging pile varies according to different suppliers and models. The DC charging pile adds modules to it (the AC charging pile does not have modules), and it is connected to a 380V three-phase voltage. The common one is a 15KW module, so the power is generally 15KW, 30KW, 45KW, 60KW, 90KW, 120KW, 180KW, 240KW, 360KW, etc.
The pure electric vehicle charging pile can be charged at either 220V or 380V, and the Chinese 220V specification will be followed in China. When there are many charging businesses in the daytime, 380V DC mode is used for fast charging; When there are few users in the charging station at night, 220V AC charging can be used for slow charging.
Pure electric vehicles have many advantages. Because pure electric vehicles are more environmentally friendly than traditional vehicles, and the control of pure electric vehicles is actually simpler than that of hybrid vehicles. On the one hand, hybrid electric vehicles need to control the engine, on the other hand, they need to control the battery and motor, and make the motor and engine work well matched, which is very difficult in technology. In contrast, pure electric vehicles need simpler motor torque and power control, and the motor response speed is also faster. At present, the main problem to be solved is the battery. It is necessary to improve the battery life, improve the range and reduce the cost.
The management and scrap recycling of batteries should also be considered. In the future, the car owner can supplement the electric energy by changing a battery in the charging station, so that the car owner does not need to wait for the charging time, which is convenient and fast. The charging station also realizes the unified charging and management of batteries, which is a good solution to improve the battery life and facilitate the recycling of old batteries. With the further improvement of battery performance and the improvement of supporting facilities and management schemes, pure electric vehicles still have a broad development prospect.
