Electric automobile intelligent orderly charging system

Abstract

The invention discloses an electric automobile intelligent orderly charging system which is suitable for a community distribution transformer and comprises a data acquisition unit and a data server. The data acquisition unit is installed on a gateway of the community distribution transformer and used for acquiring voltage and current data of the community distribution transformer in real time andthen sending the voltage and current data to the data server; the data server is used for receiving the voltage and current data of the community distribution transformer in real time, obtaining the real-time load rate of the community distribution transformer, and cutting off a charging loop of a resident personal charging pile in real time when the real-time load rate of the community distribution transformer is greater than a preset community distribution transformer load rate threshold value; and when the difference value is smaller than the threshold value, a charging loop of the residentpersonal charging pile is controlled and turned on in a preset valley period. According to the invention, the charging requirement of residents on electric vehicles can be safely and reliably met byutilizing the existing distribution transformer of the community without adding a transformer substation, and the economic operation efficiency of distribution transformers of a community is improved.

Description

technical field [0001] The invention relates to the technical field of comprehensive new energy services, in particular to an intelligent orderly charging system for electric vehicles, which is suitable for distribution transformers in residential quarters with relatively concentrated personal charging piles. Background technique [0002] With the growth of the market share of electric vehicles, the number of car owners who apply for the installation of personal charging piles for residents is increasing day by day. Therefore, there are many practical problems in the community where the personal charging piles of residents are relatively concentrated. One of the problems is: the growing number of personal charging piles for residents There is a contradiction between the access demand and the limited capacity of distribution transformers in the community. Since the distribution transformers in many old communities are insufficient in capacity, and new charging piles are connec...

AI Technical Summary

Problems solved by technology

[0002] With the growth of the market share of electric vehicles, the number of car owners who apply for the installation of personal charging piles for residents is increasing day by day. Therefore, there are many practical problems in the community where the personal charging piles of residents are relatively concentrated. One of the problems is: the growing number of personal charging piles for residents There is a contradiction between the access demand and the limited capacity of distribution transformers in the community. Since the distribution transformers in many old communities are insufficient in capacity, and new charging piles are connected, the load of the distribution transformer in the community will be heavily overloaded. At the same time, The charging time of electric vehicles is relatively concentrated and is often in the peak hours of residents' daily electricity consumption (such as 8:00-21:00), which makes the peak value of the distribution transformer in the community superimpose and the peak-to-valley difference rate becomes larger. These factors are all Affect the economic operation efficiency of distribution transformers in the community

[0003] For the existing orderly charging piles that adopt the orderly charging mode, they are all public piles. During installation, it is necessary to add public charging piles and supporting substations in residential quarters. However, for old residential areas and other places that have already , affected by factors such as the geographical space of the community, it cannot be effectively popularized

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