The article analyses original methods of DGA fault diagnose, include three-ratio method, artificial neural network method, Fuzzy Theory, diagnosing expert system, grey relational algorithm, et.
本文分析了原有的DGA故障诊断方法，包括三比值法、人工神经网络法、模糊理论、变压器诊断专家系统、灰色关联算法等。
Grey system theory is introduced into the multi-attribute fuzzy optimal selection of design scheme, the fuzzy optimal selection model is formed based on the grey relational analysis.
将灰色系统理论引入设计方案的多属性模糊优选，形成基于灰色关联分析的模糊优选模型。
Based on the fuzzy relational model of the open-loop system, the design of a fuzzy feedback controller is discussed.
以开环系统模糊关系模型为基础，讨论了模糊关系系统反馈控制器的设计。
While a fuzzy system is described by a fuzzy relational matrix corresponding to the fuzzy input, the fuzzy output and the fuzzy controller.
而模糊系统是用一个与输入、输出及控制项有关的模糊关系矩阵来描述的。
In the implement of system, we use membership function to mirror faults fuzzy and fuzzy concern, relational database to describe knowledge and rules, and perform ruled-based inference.
在系统实现中，采用隶属函数来反映故障对象特征的模糊性和模糊关系，基于关系数据库进行知识的模糊表达，实现基于规则的模糊推理。
In the implement of system, we use membership function to mirror faults fuzzy and fuzzy concern, relational database to describe knowledge and rules, and perform ruled-based inference.
在系统实现中，采用隶属函数来反映故障对象特征的模糊性和模糊关系，基于关系数据库进行知识的模糊表达，实现基于规则的模糊推理。
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