The invention discloses a failure determination method and device for an output side relay of a charging pile and the charging pile, and relates to the technical field of new energy. According to the method, on the basis of sampling of output voltages (a first voltage and a third voltage) of a traditional series-parallel connection switching type charging pile, sampling signals of the output voltages (a second voltage) are added, so that detection signals corresponding to relay failure detection are increased, corresponding relay failure modes are detailed, judgment of the failure modes is specific, and the reliability of the charging pile is improved. Through detection of three voltages (the first voltage, the second voltage and the third voltage), a relay failure mechanism can be rapidly judged. The acquisition of the sampling signals in the preset time interval avoids hysteresis caused by untimely acquisition in a steady state in traditional detection, and the scheme of the invention performs real-time detection and avoids secondary faults caused by the hysteresis.

    本发明公开了一种充电桩的输出侧继电器的失效确定方法、装置以及充电桩,涉及新能源技术领域。该方法在传统的串并联切换式充电桩在输出电压(第一电压和第三电压)的采样基础上,增加输出电压(第二电压)的采样信号,使得继电器失效检测对应的检测信号增加,对应的继电器失效模式细致化,在失效模式的判断上较为具体,通过三种电压(第一电压、第二电压和第三电压)的检测,能够快速判断继电器失效机制。在预设时间间隔内的采样信号的获取,避免传统的检测在稳态状态下获取不及时导致的滞后性,本方案实时检测,避免因滞后性导致的二次故障发生。


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    Titel :

    Failure determination method and device for output side relay of charging pile and charging pile


    Weitere Titelangaben:

    充电桩的输出侧继电器的失效确定方法、装置以及充电桩


    Beteiligte:
    JUNG JIN (Autor:in) / LI HUI (Autor:in) / ZHANG LIN (Autor:in) / DONG ZHENYE (Autor:in) / KE WEIQUAN (Autor:in) / FAN ZHIQIANG (Autor:in) / ZHANG CHAOHUA (Autor:in)

    Erscheinungsdatum :

    11.06.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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