基于FP-Growth算法的配电网薄弱点分析研究

随着配电网快速发展,对配电网运行稳定性的要求也愈来愈高。但由于设备复杂度高、外界因素影响较多,造成配电网故障时有发生。针对配电网设备通常于薄弱点处发生故障的问题,文中提出薄弱度的概念来量化分析薄弱点。同时,为判断薄弱点的薄弱程度,将配电网薄弱度设置为等于FP-Growth算法中支持度的数值。随后将库尔钦斯基(Kulczynski)度量与不平衡比配合使用,验证关联规则的强关联性及是否有意义。通过算例及实际运行情况验证了该方法的有效性,为配电网运行薄弱点的分析检测提供支持。

Research on Weak Point Analysis of Distribution Network Based on FP-Growth Algorithm

With the rapid development of the distribution network, the requirements for the stability of the distribution network are becoming higher and higher. However, due to the high complexity of the equipment and the influence of external factors, the failure of the distribution network may occur. In view of the problem that the distribution network equipment usually fails at the weak point, the concept of weakness degree is proposed to quantify the weak point. At the same time, in order to judge the weakness degree of the weak point, the distribution network weakness degree is set equal to the value of the support in the FP-Growth algorithm. The Kulczynski metric is then used in conjunction with the imbalance ratio to verify the strong correlation and significance of the association rules. The effectiveness of the method is verified by examples and actual operation conditions, which provides support for the analysis and detection of weak points in the distribution network operation.