基于模糊层次分析法的输变电系统可靠性分析方法

Reliability Analysis Method for Power Transmission and Transformation Systems Based on Fuzzy Analytic Hierarchy Process

输变电系统可靠性分析判定矩阵一般采用目标分析形式,判定效率较低,导致可靠节点占比降低。为此,提出对基于模糊层次分析法(FAHP)的输变电系统可靠性分析方法的设计与验证分析。根据当前测定,需要先确定可靠性评价指标,采用多阶的方式提高判定效率,完成多阶判定矩阵的设置。在此基础上,构建模糊层次输变电系统可靠性分析模型,采用持续核验处理完成可靠性分析。结果表明,针对选定的4条支路,经过3个周期的测定,最终得出的可靠节点占比均可达3.8以上,说明在FAHP的辅助下,设计的输变电系统可靠性分析方法更真实、高效,实际应用效率明显提升,具有一定的应用价值。

The reliability analysis judgment matrix for power transmission and transformation systems generally adopts the form of objective analysis,which has low judgment efficiency and leads to a decrease in the proportion of reliable nodes.Therefore,this paper proposes the design and verification analysis of a reliability analysis method for power transmission and transformation systems based on fuzzy analytic hierarchy process(FAHP).According to the current measurement,it is necessary to first determine the reliability evaluation indicators,adopt a multi-level approach to improve the judgment efficiency,and complete the setting of the multi-level judgment matrix.On this basis,a fuzzy hierarchical reliability analysis model for transmission and transformation systems is constructed,and continuous verification processing is used to complete the reliability analysis.The results show that for the selected four branches,after three cycles of measurement,the proportion of reliable nodes can all reach 3.8 or above,indicating that with the assistance of FAHP,the designed reliability analysis method for transmission and transformation systems is more realistic and efficient,and the actual application efficiency has been significantly improved,which has certain application value.