The invention discloses a household electric power traffic equipment charging abnormity analysis method based on loop impedance, and the method comprises the following steps: 1) constructing a household electric power traffic equipment equivalent charging loop model, and determining a loop equation of a charging pile user i based on a KVL law; 2) determining a charging time period of a charging pile user i according to the current data of the charging pile, and collecting voltage time sequence data of a transformer in a transformer area, voltage time sequence data of the charging pile user i and current time sequence data of the charging pile user i in the charging time period; 3) substituting the data obtained in the step 2) into the loop equation in the step 1), and solving the loop impedance of the charging pile user i based on a linear regression model; and 4) repeating the steps in the T time period to obtain a calculation result sequence of the loop impedance of the charging pile user i, detecting an outlier in the calculation result sequence based on a 3 sigma criterion algorithm, and judging whether an abnormal charging behavior exists or not. According to the method for analyzing the charging abnormity of the household electric power transportation equipment based on the loop impedance, through monitoring and analyzing the loop impedance of the low-voltage charging pile user, the abnormal charging behavior of the household electric automobile and/or battery car charging pile user can be effectively found out, an electric power manager is helped to strengthen power consumption management, the economic benefit of an enterprise is improved, and the economic benefit of the enterprise is improved. And safe and reliable power supply is realized.

    本发明公开了一种基于回路阻抗的居民家用电力交通设备充电异常分析方法,包括以下步骤:1)构建居民家用电力交通设备等效充电回路模型,并基于KVL定律,确定充电桩用户i的回路方程;2)根据充电桩电流数据确定充电桩用户i的充电时段,采集该充电时段内台区变压器的电压时间序列数据和充电桩用户i的电压时间序列数据和充电桩用户i的电流时间序列数据;3)将步骤2)得到的数据带入步骤1)的回路方程,基于线性回归模型,求解充电桩用户i的回路阻抗;4)在T时段内重复以上步骤得到充电桩用户i的回路阻抗的计算结果序列,基于3σ准则算法检测计算结果序列中的离群值,判定是否存在异常充电行为。本发明的基于回路阻抗的居民家用电力交通设备充电异常分析方法通过低压充电桩用户回路阻抗的监测分析,可有效发现居民家用电动汽车和/或电瓶车充电桩用户的异常充电行为,帮助电力管理者加强用电管理,提高企业的经济效益,安全可靠的供用电。


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    Titel :

    Resident household electric power transportation equipment charging abnormity analysis method based on loop impedance


    Weitere Titelangaben:

    基于回路阻抗的居民家用电力交通设备充电异常分析方法


    Beteiligte:
    LI LEI (Autor:in) / WU HENG (Autor:in) / QIN WEI (Autor:in) / LI YINGYING (Autor:in) / PEI FENG (Autor:in) / BU RUFEI (Autor:in)

    Erscheinungsdatum :

    2023-11-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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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