The invention provides an overcurrent prediction method, medium and system for a liquid-cooling over-charging pile, and belongs to the technical field of electrical variable measurement, and the method comprises the steps: designing a time-sensitive HyperLogLog (TS-HLL) structure through collecting the charging parameters and heat exchange parameters of the liquid-cooling over-charging pile, and coding the parameters; statistical characteristics of charging parameters and heat exchange parameters are extracted by using a time sliding window technology, and a correlation matrix between the charging parameters and the heat exchange parameters is calculated. Based on the correlation matrix, a relation graph of the charging current and other parameters is constructed, a graph neural network is used for learning the relation graph, and a complex nonlinear relation between the charging current and other parameters is extracted. And finally, combining the learned features with historical charging data, inputting the combined features and historical charging data into a recurrent neural network, and predicting the charging current in a period of time in the future, thereby solving the problem of rapid over-current prediction of the liquid cooling over-charging pile, which is difficult to solve in the prior art.

    本发明提供了一种液冷超充充电桩的过流预测方法、介质及系统,属于测量电变量技术领域,包括:通过采集液冷超充充电桩的充电参数和热交换参数,设计了时间敏感的HyperLogLog(TS‑HLL)结构对这些参数进行编码。利用时间滑动窗口技术,提取了充电参数和热交换参数的统计特征,并计算了两者之间的相关性矩阵。基于相关性矩阵,构建了充电电流与其他参数的关系图谱,使用图神经网络对其进行学习,提取了充电电流与其他参数之间的复杂非线性关系。最后,将学习到的特征与历史充电数据结合,输入到循环神经网络中,对未来一段时间内的充电电流进行预测,从而解决了当前现有技术难以解决的快速的液冷超充充电桩的过流预测的问题。


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    Title :

    Overcurrent prediction method, medium and system for liquid cooling over-charging pile


    Additional title:

    一种液冷超充充电桩的过流预测方法、介质及系统


    Contributors:
    ZHANG XIN (author) / ZHANG JIAXING (author) / WANG XIAOLIN (author) / GUO YANG (author) / CHEN XIANGQIANG (author)

    Publication date :

    2025-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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