模糊集对分析在大型变压器状态评价中的应用  

Fuzzy Set Pair Analysis in Transformer Condition Evaluation

作　　者：杨映滋[1] 罗日成[1] 黄知明[1] 黄彪[1] 张昇[1] 

机构地区：[1]长沙理工大学电气与信息工程学院,长沙410014

出　　处：《电气技术》2013年第1期29-33,83,共6页Electrical Engineering

摘　　要：针对变压器状态参量多而杂且难以确定的特点,本文结合模糊层次分析法,提出了基于集对分析法的联系度评价模型,从电气试验项目、绝缘油试验项目和油中气体分析项目等方面来实现对变压器状态的评价。首先,确定联系度表达式,构造模糊判断矩阵,采用模糊层次分析法准确计算出各评价指标的权重。然后,运用模糊联系度的概念,解决了联系度中差异度系数i的取值问题,并从接近程度属性上对i作深层次的同异反分析讨论。最后,实例分析和结果比较,证明了该方法的正确性和有效性,为变压器的状态维修提供了合理的决策依据。The paper presents a Evaluating Model of affiliation degree and set-pair state for the variety and uncertainty of state parameters,combining Fuzzy Analytic Hierarchy Process（FAHP）,evaluating on the condition of the transformer from the aspects of electrical test,parameter of oil characteristic,state parameter of dissolved gases in oil.Adopting the FAHP to confirm the weight distribution of every index,makes consistency checking convenient and straightforward.Based on fuzzy degree of connection,a new method was proposed to determine the discrepancy coefficient in Set Pair Analysis.Using this method,the discrepancy coefficient i should be analyzed in discrepant,identical and contrary aspects.Then,the case analysis and the results comparison were taken to verify the validity and feasibility of the proposed method.

关 键 词：大型变压器 状态评价 模糊层次分析法 集对分析 联系度 

分 类 号：TM41[电气工程—电器]