采用模糊集合论事故树法的变压器故障分析

应用基于模糊理论的模糊事故树分析方法对变压器进行故障分析,将故障率转换为模糊数故障率,并应用专家评分法对无统计资料的故障进行概率估计.阐述了转换成模糊数的途径,给出了该方法的一个应用实例.结果表明,采用模糊事故树分析方法具有很好的灵活性和适应性,应用于变压器故障分析和故障预防中具有很强的工程实用价值.

Power Transformer Fault Diagnosis Method Based on Fault Tree Methat with Fuzzy Sets Theory

It is mentioned in this paper that the fault analysis for transformers with the method of fuzzy fault tree based on fuzzy theory,which turns the fault rate into fuzzy math fault rate and processes probability estimation on the fault using expert graded method without statistical information. The way of changing into fuzzy math is expatiated and an applied example is also been offered. The result shows that the analysis method of fuzzy fault tree provided good flexibility and adaptability. It is valuabe to transformer fault analysis and fault prevention in practice.