多判据自适应权重融合的配电网接地故障选线方法

Multi-Criteria Adaptive Weight Fusion Method for Grounding Fault Line Selection in Distribution Networks

摘要: 基于配电网SCADA系统采集的变电站开关零序电流，构建了基于“TEO能量-相位均值-相位方差-幅值有效值”的多判据自适应权重融合故障选线方法，通过对多个故障特征值进行融合评分来量化识别接地线路。在MATLAB中搭建仿真模型，结果表明该方法故障选线准确率达99.3%以上，满足配电网故障实时监测的工程需求。

Abstract: Based on zero-sequence current from the distribution network SCADA system, this paper constructs a multi-criteria adaptive weight fusion judgment mechanism (TEO energy, phase mean, phase variance, phase amplitude RMS) and realizes fault line selection via fusion scoring. MATLAB simulation verifies that the fault line selection method accuracy exceeds 99.3%, fully meeting the real-time fault line selection requirements of distribution network.