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Introduction to DC Charging station

DC electric vehicle charging station, commonly known as "fast charging", is a power supply device that is fixed outside the electric vehicle and connected to the AC power grid. It can provide DC power for the off-board electric vehicle power battery. The input voltage of the DC Charging station is three-phase four wire AC380V ± 15%, the frequency is 50Hz, and the output is adjustable DC, which directly charges the power battery of the electric vehicle. As the DC Charging station adopts three-phase four wire system for power supply, it can provide sufficient power, and the output voltage and current can be adjusted in a wide range, which can meet the requirements of fast charging

Technical requirements for DC Charging station

a) Power input voltage of Charging station: three-phase four wire 380VAC ± 15%, frequency 50Hz ± 5%

B) Charging station shall meet the requirements of charging objects

C) The output of the Charging station is DC, and the output voltage meets the battery system requirements of the charging object

D) * The large output current meets the charging requirements of battery system 1C of the charging object and is Backward compatibility

E) Charging methods can be divided into two types: conventional and fast, with the conventional 5-hour charging method and the fast 1-hour charging method (selected for different battery types)

f) Implement intelligent IC management

G) Each Charging station is equipped with an operator for users to select charging mode and guide operation, and display Electric vehicle battery status and user IC card tariff information to achieve unattended management

H) The interface of the Charging station shall comply with the relevant provisions on the DC charging interface in the GB Electric Vehicle Conductive Charging Interface (Provisional)

I) The communication interface of the Charging station adopts the CAN communication interface, and the communication protocol is in accordance with the provisions of the communication protocol (provisional) between the GB electric vehicle Battery management system and the off board charger (the charging object is the lithium battery electric vehicle)

K) The Charging station shall monitor the status of the battery and automatically adjust the charging current and voltage according to the battery temperature, voltage versus charging curve

L) Forced air cooling is adopted for Charging station

M) The protection grade of Charging station shall meet the requirements of IP54 in GB 4208-1993 Degrees of Protection Provided by Enclosures (IP Code)

Introduction to DC/fast charging Charging station of electric vehicles On the market today, the price of DC Charging station is obviously higher than that of AC Charging station. Because the production cost of DC power supply will be a bit more expensive. At present, there are three types of enclosures for electric vehicle Charging station: wall mounted electric vehicle Charging station, floor mounted electric vehicle Charging station, and handheld electric vehicle Charging station. Introduction to relevant DC power supply devices, DC regulated power supply

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