基于集对分析和关联规则的配电网故障选线决策方法

A Fault Line Selection Decision Method in Distribution Network Based on Set Pair Analysis and Association Rules

摘要: 配电网故障选线是配电系统稳定运行的保障，其重要性不言而喻。无数学者综合各方因素深化研究配电网故障选线决策方法，但现有研究对故障选线原理的适应性分析略显不足。且由于工程实际并未制定严格的选线标准，随意选择选线装置的乱象层出不穷，致使选线方法和配电网工况不匹配。鉴于此，文章参考前人研究成果，综合考量工程实况，择优选择和配电网工况高度适配的选线方法，并构建了基于关联规则和集对分析的选线原理决策模型，力求能提升选线质效，消除工程隐患，保障人身安全。具体包括建立选线特征量集、选线可信度指标集和关联因素集，求取关联因素对故障特征的权重系数，计算选线可信度指标和关联因素的相关系数，并在此基础上提出关联模型计算方法，构造隶属度函数，构建选线评价矩阵。

Abstract: The fault line selection of the distribution network guarantees the stable operation of the distribution system, and its importance is self-evident. Many scholars have studied the fault line selection decision method of distribution networks by integrating various factors, but the adaptability analysis of the fault line selection principle in the existing studies is slightly insufficient. Due to the fact that there is no strict line selection standard, the random selection of the line selection device is endless, resulting in the mismatch between the line selection method and the working condition of the distribution network. In light of this, the paper draws on the research findings of predecessors, takes into comprehensive consideration the actual conditions of the project, and selects the optimal line selection method that is highly compatible with the distribution network operating conditions. Furthermore, it constructs a line selection decision-making model based on association rules and set pair analysis, striving to enhance the quality and efficiency of line selection, eliminate potential project risks, and ensure personal safety. Specifically, it establishes a set of fault line selection characteristic quantities, a set of line selection credibility indicators, and a set of associated factors for distribution networks. It proposes a calculation method for the correlation model between line selection credibility indicators and associated factors, calculating the correlation coefficient of the reliability index of line selection and the correlation factor of line selection. On this basis, the correlation model calculation method is proposed, the membership degree function is constructed, and the line selection evaluation matrix is constructed.