The invention discloses an electric vehicle charging load studying and judging system. The system comprises a plurality of data acquisition units and a data server, wherein each data acquisition unitis used for acquiring voltage signal data and current signal data on a charging loop of each resident personal charging pile in real time and then sending the voltage signal data and the current signal data to the data server; the data server is used for a pre-stored charging load feature library, the charging load feature library comprises a preset qualified voltage signal waveform and a preset qualified current signal waveform, and voltage signal data and current signal data on a charging loop of each resident personal charging pile are received; the voltage signal waveform and the current signal waveform, changing along with time, of each resident personal charging pile are processed, then comparison is carried out, and when the waveform difference is large, it is judged that a suspected default electricity utilization problem exists. The method is suitable for the resident personal charging piles, can quickly and reliably judge whether a suspected default power utilization problemexists or not, and can further enable a worker to pass the on-site inspection and verification.

    本发明公开了一种电动汽车充电负荷研判系统,包括多个数据采集单元和数据服务器,其中:每个数据采集单元,用于实时采集每个居民个人充电桩的充电回路上的电压信号和电流信号数据,然后发送给数据服务器;数据服务器,用于预先存储的充电负荷特征库,该充电负荷特征库内包括预设合格的电压信号波形和电流信号波形,及接收每个居民个人充电桩的充电回路上的电压信号和电流信号数据,并处理形成每个居民个人充电桩具有的随时间变化的电压信号波形和电流信号波形,然后比对,当波形差异较大时,判断存在疑似违约用电问题。本发明适用于居民个人充电桩,能够快速、可靠地判断是否存在疑似违约用电问题,可以进一步让工作人员通过现场检查核实。


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    Title :

    Electric vehicle charging load studying and judging system


    Additional title:

    一种电动汽车充电负荷研判系统


    Contributors:
    ZHANG JINGWEN (author) / SI GANG (author) / LI YING (author) / WANG JINGPENG (author)

    Publication date :

    2021-03-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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