摘要
针对电力变压器故障诊断常用的罗杰斯比值法中存在着临界比值判据缺损的问题，提出了利用模糊集理论进行电力变压器故障诊断的方法。将气体比值看作故障类别的模糊现象子集，依据罗杰斯比值法中给出的不同气体成份相互间的比值与变压器故障类别之间的定量关系，建立模糊现象子集相对于不同故障类别的隶属函数，从而进行故障类别的模糊综合评判。
According to the fuzzy synthetic judgement, a fuzzy diagnosis for power transformer faults is presented in this paper Membership functions between fault phenomena and types are introduced based upon the diagnostic ultimate of Rogers method And a multiple layer judgement rule is set up in order to sloving the critical state of Rogers method The practical examples show that this method is effective and advantageous.
出处
《电力系统自动化》
EI
CSCD
北大核心
1996年第12期30-33,共4页
Automation of Electric Power Systems
关键词
电力变压器
故障诊断
模糊综合评判
power transformer fault diagnosis phenomena sub sets membership functions synthetic judgement
