Difference between car charging post and charging post
A charging post is a charging device with a human-machine interface with an AC gun. Simply put, it is an electrical device that can be charged. There are integrated and detached types. , you need to configure the appropriate charging stack as an output terminal. The concept of a charging stack emerged by generating a one-to-many charging pattern, which is a form of efficient use of power modules and rational allocation of charging power. Firstly, charging piles are cured of power and therefore have poor compatibility and make it impossible to charge vehicles with different power requirements. Series charging stacks are poorly adapted to meet the needs of rapidly evolving battery technology and can easily lead to the constant use of the charging equipment invested in.
Flexible charging stacks are characterised by:
1. power sharing: all the power in the charging station is centralised and each charging terminal can obtain the required power from this power stack;.
2. flexible charging: charging power is allocated on demand according to the charging requirements issued by the vehicle BMS; and
3. Dynamic scaling: Increase charging power requirements by increasing the battery charging rate and the need for power conversion of scalable power packs; and
4. Energy saving and efficient: within the optimal load rate range, the charging equipment should work regardless of the charging requirements.
Therefore, the charging stack can:
1. can meet the different power requirements of various vehicle charging, and improve the charging conversion efficiency and equipment utilisation of charging facilities.
2. Can meet the high rate of battery charging stack, can solve the charging pile "upward compatibility" problem. Although the current charging pile interface standards and other standards have been unified, but the "upward compatibility" problem has not been effectively solved. As battery technology continues to develop, the demand for charging facilities for new energy vehicles will continue to grow. Whether the charging stacks built today are suitable for future use of new energy vehicles has also become a major issue for the industry.
Charging stacks do not need to take into account the charging rate and battery capacity when charging, but only need to be charged according to the amount of power required from the battery. In the future, when the energy density of the battery is increased and the battery capacity is increased, it will still be possible to charge the charging stack by increasing the charging power, thus effectively solving the problem of "upward compatibility" of charging piles.