Power distribution method and monitoring unit of group charging system

Abstract

The invention relates to a group charging system and a power distribution method and a monitoring unit thereof. The power distribution method comprises the steps that when a charging gun is judged to be inserted into a to-be-charged first electric car through the power distribution method, the charging requirement of the first electric car is obtained; the priorities of the first electric car and a current charged electric car are obtained correspondingly; and according to the priority of the first electric car, the priority of the current charged electric car and the charging requirement of the first electric car, the power is allocated for the first electric car and the current charged electric car to preferentially meet the charging requirement of the electric car with the high priority. According to the technical scheme of the group charging system and the power distribution method and the monitoring unit thereof, a power module can be deployed to the high-priority electric car from the low-priority electric car without operations such as gun drawing, and therefore for multiple simultaneous charged electric cars, the electric car which needs being charged most can be quickly charged in priority, so that the effect of quick and intelligent power distribution is achieved.

Description

technical field [0001] The invention relates to the technical field of DC charging, in particular to a group charging system, a power distribution method and a monitoring unit thereof. Background technique [0002] With the rapid development of electric vehicles, charging pile technology is also advancing by leaps and bounds. In order to utilize resources more efficiently, electric vehicle group charging systems (hereinafter referred to as "group charging systems") have emerged, such as the published patent CN204928271U. The group charging system can provide charging power for electric vehicles according to their charging needs. Specifically, according to the charging requirements of electric vehicles, the power modules of the group charging system are allocated to electric vehicles. However, the power module allocation method in the current group charging system is relatively fixed. During the charging process of electric vehicles, once the monitoring unit of the group ch...

AI Technical Summary

Problems solved by technology

However, the power module allocation method in the current group charging system is relatively fixed. During the charging process of electric vehicles, once the monitoring unit of the group charging system allocates power modules for a specific vehicle, it cannot be flexibly deployed according to the needs of new users. , For example, when the electric vehicles of the latest connection group charging system need to be charged in time, they can only wait for the electric vehicles with charging to be disconnected, or directly disconnect the connected electric vehicles manually

[0003] Therefore, it can be found that the existing group charging system has the disadvantages of a single power allocation method, which cannot effectively adjust the charging priority of the electric vehicle being charged, cannot perform power redistribution during the charging process, and has poor user experience.

Images