针对继电保护故障信息系统中的故障分析专家系统，提出了其设计的指导思想，并分析了其功能结构。
A design method of fault analysis expert system in relay protection and fault information system is put forward, and its the functional structure is analyzed.
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。
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.
分析了在构造机械加工故障诊断专家系统时领域知识的不确定性。
The uncertain problem of the domain knowledge in building machining operation expert system for fault diagnosis is analysed.
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