The invention provides an electric vehicle charging station hierarchical control method and related equipment, and the method comprises the steps: obtaining the charge state of a battery, the output power of a charger and the nominal voltage of a DC micro-grid when all electric vehicles work in a vehicle-network interaction operation mode, and obtaining the output reference voltage of each electric vehicle charger; the charge balance module is used for realizing charge balance between electric automobiles through droop control; introducing state factors including output power and output voltage for each electric vehicle charger, and obtaining an average value of the state factors based on all the state factors; generating a voltage compensation item of each electric vehicle charger according to the average value of the state factors so as to compensate the output reference voltage of each electric vehicle charger to obtain a compensation result, and performing power distribution on the electric vehicle charging station according to the compensation result; the problems that batteries are damaged due to deep charge and discharge of the state of charge of the electric vehicle during vehicle-network interaction and the bus voltage fluctuates due to power change of the direct-current micro-grid are solved.

    本发明提供了一种电动汽车充电站分层控制方法及相关设备,获取所有电动汽车工作在车网互动的运行模式时电池的荷电状态、充电器的输出功率以及直流微电网的标称电压,得到每个电动汽车充电器的输出参考电压,用于通过下垂控制实现电动汽车之间的荷电平衡;为每个电动汽车充电器引入包含输出功率和输出电压的状态因子,并基于所有状态因子得到状态因子的平均值;根据状态因子的平均值生成每个电动汽车充电器的电压补偿项,以对每个电动汽车充电器的输出参考电压进行补偿,得到补偿结果,并通过补偿结果对电动汽车充电站进行功率分配;解决了车网互动时电动汽车因荷电状态深度充放电损害电池及直流微电网功率变化引起的母线电压波动问题。


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    Title :

    Electric vehicle charging station hierarchical control method and related equipment


    Additional title:

    一种电动汽车充电站分层控制方法及相关设备


    Contributors:
    CHEN MING (author) / CAO QINGLONG (author) / ZHANG RUIQI (author) / WANG ZILONG (author) / LIU YING (author) / LIU SHUI (author) / ZHONG ZHENXIN (author)

    Publication date :

    2024-12-10


    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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