Abstract：Axis orbit is a kind of important graphic signs to judge whether the rotor is running normally or not, and it is an important target of the condition monitoring of rotating machinery. The operation state of the equipment can be expressed directly and vividly. A new method for intelligent diagnosis of shaft orbit of hydro generator set is presented. This method according to the characteristics of the hydroelectric generating unit, the application of the fuzzy distance measure between features with recent time series, the application of improved intelligent diagnosis on time sequence characteristics of SVM, improve the diagnostic level of automatic fault diagnosis system and accuracy.
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