Fuzzy fault diagnosis of power transformer based on new coding membership function

被引：0
|
作者：
Zou, Jiehui [1 ]
机构：
[1] School of Technology, Jinggangshan University, Ji'an 343009, China
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2010年 / 30卷 / 07期
关键词：
Code combination - Distribution of gas - Fuzzy diagnosis - Fuzzy theory - Gas-in-Oil - Probability theory - Three-ratio methods - Transformer;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The distributions of true gas-in-oil volume fraction and its ratio are analyzed with probability theory and mathematical statistics. Combined with the three-ratio coding boundary, a way to solve the coding membership function is proposed based on the true ratio distribution of gas-in-oil volume fraction. The calculation methods of code-combination fuzzy set, fault fuzzy set and cut set are researched. The fuzzy diagnosis is verified with two sets of historical chromatogram data and corresponding test results, which shows that the diagnosis robustness and accuracy are improved.
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页码：88 / 91
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