The invention provides a direct current charging pile, a charging control method and a charging station, which are applied to the technical field of direct current charging, and the charging pile comprises an alternating current distribution circuit, at least one power conversion branch, a power distribution circuit and at least one charging gun, the input end of the alternating-current power distribution circuit is connected with an alternating-current power grid, the output end of the alternating-current power distribution circuit is connected with the input ends of the power conversion branches, the output ends of the power conversion branches are connected with the input end of the power distribution circuit, and the output end of the power distribution circuit is connected with the charging guns. A first controllable switch is arranged in the power conversion branch, and a second controllable switch is arranged in the alternating-current distribution circuit, so that if any one of the first controllable switch and the second controllable switch has an adhesion fault, the direct-current charging pile can still be disconnected from an alternating-current power grid through the other controllable switch; and through redundant arrangement of the controllable switch, the probability of overall failure of the charging pile can be reduced, and the reliability is improved.

    本发明提供的直流充电桩、充电控制方法及充电站,应用于直流充电技术领域,该充电桩包括交流配电电路、至少一路功率变换支路、功率分配电路以及至少一个充电枪,交流配电电路的输入端与交流电网相连、输出端分别与各功率变换支路的输入端相连,各功率变换支路的输出端与功率分配电路的输入端相连,功率分配电路的输出端与各充电枪相连,本发明提供的直流充电桩中,功率变换支路中设置有第一可控开关,且交流配电电路中设置有第二可控开关,如果第一可控开关和第二可控开关中的任意一个发生粘连故障,仍然可以通过另外一个可控开关断开直流充电桩与交流电网的连接,通过可控开关的冗余设置,能够降低充电桩整体失效的概率,提高可靠性。


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    Title :

    Direct current charging pile, charging control method and charging station


    Additional title:

    一种直流充电桩、充电控制方法及充电站


    Contributors:
    XU LINCHONG (author) / YANG YUEFENG (author) / CHEN XIN (author)

    Publication date :

    2021-08-06


    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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen



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