Cluster type alternating-current ordered charger and charging method

Abstract

The invention discloses a cluster type alternating-current ordered charger and a charging method, and belongs to the technical field of electric vehicle charging piles. The cluster type alternating current ordered charger comprises a host and a plurality of terminal interfaces, wherein the host comprises a main control unit and a plurality of output units, and each output unit is connected with each terminal interface; the output units comprise alternating current contactors, electric meters and control guide circuits; each alternating current contactor is connected with the corresponding electric meter; each electric meter and the control guide circuit are connected with the corresponding terminal interface. The alternating current contactors, the ammeters and the control guide circuits are respectively in communication connection with the main control unit, and the on-off of the alternating current contactors is controlled through the main control unit, and therefore, a plurality ofterminal interfaces can be uniformly controlled, the output current of each terminal interface can be reasonably distributed, the requirement of each charging interface can be met under the conditionof external power supply shortage, and meanwhile, the average cost of each interface is greatly reduced due to the sharing of the same main control unit.

Description

technical field [0001] The invention belongs to the technical field of charging piles for electric vehicles, and in particular relates to a cluster-type AC orderly charger and a charging method. Background technique [0002] With the development of new energy electric vehicles, the society's demand for charging piles is increasing. Due to the characteristics of low cost and convenient installation, AC chargers have become the first choice for the construction of charging infrastructure in communities, units and other places. However, in practice During construction, the original power distribution capacity is limited and needs to be expanded and rebuilt, as well as the problem of centralized use affecting power balance and power quality. [0003] Most of the existing AC chargers are in the form of a single machine and a single gun. Each AC charger operates offline, or can be connected to the charging pile management platform through network equipment. When the chargers are ...

AI Technical Summary

Problems solved by technology

[0006] (1) If only a single machine and a single gun are used for offline operation, when the power distribution capacity is insufficient, all the chargers at the point can only be disabled, and the power distribution capacity cannot be used efficiently, and the utilization rate of the chargers is also low

[0007] (2) Connect the chargers to the charging management platform through the network for cluster management. Although the problem of orderly charging is better solved, the introduction of each charger's network equipment and charging management platform has greatly increased the overall system. costs, and will continue to generate platform maintenance, broadband fees, etc.

Images