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目前,电动汽车(EV)充电的方法主要有:(1)交流充电。由电网提供220V或者380V交流电源,经过车载充电装置的滤波、整流和保护等功能,实现对电动汽车蓄电池的充电过程。这种充电方法充电时间较长,充电功率较小,适合小型纯电动车以及混合动力运行的汽车。(2)直流充电。这种充电方式是由地面提供直流电源,直接为车上的蓄电池进行充电,省去了车载充电装置,有利于车身自重的减轻。地面充电机一般功率较大,能实现快速充电,适合电动公交车等大型电动汽车。
Currently, electric vehicles (EV) charging methods are: (1) AC charging. Provided by the power grid 220V or 380V AC power supply, through the vehicle charging device filtering, rectification and protection functions to achieve the battery charging process of electric vehicles. This charging method longer charging time, charging power is smaller, suitable for small pure electric vehicles and hybrid vehicles. (2) DC charging. This charging method is provided by the ground DC power supply directly to the car’s battery charging, eliminating the need for on-board charging device is conducive to the reduction of body weight. Ground charger generally larger power, can achieve fast charging, suitable for electric buses and other large electric vehicles.