Method for adjusting output power of charging equipment

Abstract

The invention belongs to the technical field of electric vehicle charging and particularly relates to a method for adjusting output power of charging equipment. In order to solve the problem of low utilization rate of the charging equipment due to energy shortage at the charging peak, the method comprises the following steps of judging whether a charging equipment group is in a full load conditionor not under the condition that a to-be-charged object is newly connected; if the charging equipment group is in the full load condition, determining total deficient output power of the charging equipment group and a maximum drop amplitude of total output power; and when the total deficient output power is greater than or equal to the maximum drop amplitude, reducing the output power of the charging equipment in use to charge the newly connected to-be-charged object. Through the method provided by the invention, after the to-be-charged object is connected to the charging equipment group, theutilization rate of the charging equipment can be maximized through a method of dynamically distributing the output power if the charging equipment group is in the full load condition, so that the problem of low utilization rate of the charging equipment at the charging peak is solved.

Description

Technical field [0001] The invention belongs to the technical field of electric vehicle charging, and specifically relates to a method for adjusting the output power of a charging device. Background technique [0002] With the popularization of electric vehicles, charging equipment has also been greatly developed. However, there is an energy bottleneck in the deployment of charging equipment. Take the charging pile as an example, suppose the rated output power of the charging pile group in a certain cell is P m , Where, the rated maximum output power of each charging pile in the pile group is P n , Then the maximum number of charging piles that can be used simultaneously does not exceed P m / P n That is, the total number of vehicles that can be charged in the cell at the same time is also limited to the maximum available number of charging posts. This often leads to energy bottlenecks during the peak charging period, making some vehicles no piles available during the peak chargi...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of low utilization rate of charging equipment due to energy shortage during the charging peak period, the present invention proposes a method for adjusting the output power of charging equipment. Whether the equipment group is at full load; according to the judgment result, selectively reduce the output power of the charging equipment in use

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