The invention aims to solve the problem of low utilization rate of a power module in the prior art, and provides a flexible power distribution method of a modular direct-current charging pile to improve the utilization rate of a power module. The method comprises the steps of: acquiring the remaining expected charging time and charging state of a user; according to the remaining expected chargingtime and the charging state of the user, determining the expected charging time of each charging electric vehicle; determining the charging priority of each charging electric vehicle according to theestimated charging time; when the charging electric vehicle enters a constant-voltage charging mode and the load rate of a charging module is greater than a preset first threshold value, calculating the residual power of a charging pile, determining and cutting off an idle power module according to the residual power, re-determining the charging priority after the idle power module is cut off, determining a power distribution rule based on the charging priority, and distributing the power module to a charging gun according to the power distribution rule. The method increases the power module utilization.
本发明的目的在于解决现有技术中功率模块利用率低下的问题,提供一种模块化直流充电桩的柔性功率分配方法,提高功率模块利用率。方法包括:获取用户剩余预期充电时间和充电状态;根据用户剩余预期充电时间和充电状态,确定每辆充电电动汽车的预计充电时间;根据所述预计充电时间确定每辆充电电动汽车的充电优先级;在充电电动汽车是否进入恒压充电模式且充电模块的负载率大于预设的第一阈值时,计算充电桩的剩余功率,根据所述剩余功率确定并切除空闲的功率模块,切除空闲的功率模块后重新确定充电优先级,并基于充电优先级确定功率分配规则,根据功率分配规则为充电枪分配功率模块。提高了功率模块利用率。
Flexible power distribution method of modular direct-current charging pile
一种模块化直流充电桩的柔性功率分配方法
2020-06-09
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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