The invention discloses an operation method and system of a multi-power-supply fast charging station. The operation method comprises the steps that the total surplus power of all power supplies, the surplus power of all phases of each transformer, the three-phase imbalance rate of all the power supplies and the drainage surplus power during three-phase imbalance processing are calculated through a main control module; sorting and numbering the power supplies; the main control module carries out secondary sorting on the transformers; and according to the output power required by the charging output interface, the main control module dynamically combines the switching-on and switching-off of each specific power supply through a preset logic. According to the invention, under the condition that part of power equipment is added to original power grid facilities, a small-sized fast-charging power station can be quickly built; the surplus power of each power supply (including a storage battery pack in an energy storage system) can be combined to quickly charge the electric vehicle under the condition of not breaking through the limitation condition of the capacity of the power grid; when an electric automobile or a storage battery pack of an energy storage system is charged, the problem of three-phase imbalance is solved as much as possible.
本发明公开了一种多电源快充电站的运行方法及系统,包括通过主控制模块计算各电源的总富裕功率、每台变压器各相的富裕功率、各电源的三相不平衡率以及处理三相不平衡时的可引流富裕功率;对各电源进行排序并编号;主控制模块对变压器进行二次排序;根据充电输出接口所需的输出功率,主控制模块通过预设逻辑动态组合各特定电源的投入及退出。本发明能够在原有电网设施增加部分电力设备的情况下,快速建成一个小型快充充电站;可以在不突破电网容量的限制条件下,组合各电源(含储能系统中的蓄电池组)的富裕功率给电动汽车快速充电;在给电动汽车充电,或储能系统的蓄电池组充电的同时,尽量解决三相不平衡问题。
Operation method and system of multi-power-supply fast charging station
一种多电源快充电站的运行方法及系统
2023-06-23
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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