The invention discloses an echelon power supply system, a control method thereof and fast charging equipment. The method comprises the following steps: acquiring fast charging required power of a vehicle, first maximum allowable discharging power of a first power supply circuit, first maximum allowable charging power of a second power supply circuit and an electricity price time period of a power grid; based on the electricity price time period, power distribution is carried out on the first power supply circuit and the second power supply circuit according to the fast charging demand power, the first maximum allowable discharging power and the first maximum allowable charging power; based on the power distribution result, the first conversion circuit and/or the second conversion circuit are/is controlled to work, and the quick charging circuit is controlled to work, so that the vehicle is charged, electric energy expansion can be realized by using the echelon battery, and more charging requirements can be met without newly building other equipment; according to the invention, the vehicle can be charged by using the echelon battery and/or the power grid based on the electricity price time period of the power grid, flexible charging is realized, the charging cost is reduced, and the utilization rate of energy is improved.

    本发明公开了一种梯次供电系统及其控制方法、快充设备,其中方法包括:获取车辆的快充需求功率、第一供电电路的第一最大允许放电功率、第二供电电路的第一最大允许充电功率和电网所处的电价时间段;基于电价时间段,根据快充需求功率、第一最大允许放电功率和第一最大允许充电功率,对第一供电电路和第二供电电路进行功率分配;基于功率分配结果,控制第一变换电路和/或第二变换电路工作,并控制快充电路工作,以对车辆进行充电,可以利用梯次电池实现电能扩容,无需新建其他设备就可以满足更多的充电需求;可以基于电网的电价时间段,利用梯次电池和/或电网对车辆进行充电,实现了柔性充电,并降低了充电成本,从而提高了能源的利用率。


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    Title :

    Cascade power supply system, control method thereof and fast charging equipment


    Additional title:

    梯次供电系统及其控制方法、快充设备


    Contributors:
    KANG HUIMIN (author) / ZHANG DA (author) / LI JIMING (author) / DENG ZHONGYUAN (author) / SUN SHAN (author)

    Publication date :

    2023-05-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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