Home page

Implementation of Electric Vehicle Charging Station Technology

Release time：

2023-05-10 13:32

As an energy supply device for electric vehicles, the charging performance of electric vehicle charging piles is related to the service life and charging time of battery packs. This is also one of the areas that consumers are most concerned about before purchasing electric vehicles. The basic principle of designing electric vehicle chargers is to achieve fast, efficient, safe, and reasonable power supply for power batteries. In addition, the applicability of chargers to various power batteries should also be considered.
The control system composition of the fast charger:
Control system for fast charger
The intelligent variable pulse charging method is adopted, which uses charging current pulses, including charging pulse T1, intermittent pulse T2, and discharge pulse T3.
Scheme of charger in ground charging station
The scheme of a charger in a ground charging station consists of a rectifier that can convert input AC power into DC power and a power converter that can adjust DC power. By inserting a plug with a wire into a matching socket on the electric vehicle, DC power is input into the battery to charge it. The charger is equipped with a locking lever to facilitate the insertion and removal of the plug, and the lever also provides a signal to confirm that it has been locked to ensure safety. According to the communication between the charger and the on-board battery management system, the power converter can adjust the DC charging power online, and the charger can display the charging voltage, charging current, charging amount, and charging cost. This is just the basic principle of charging stations, and many details should be continuously improved in practical applications to obtain the most convenient usage plan.