Fan bearing fault self-adaptive identification method
A self-adaptive identification and fault technology, applied in the identification and automatic identification of multivariable time series, can solve problems such as the inability to intuitively clear the running state, affecting the accuracy of the clustering algorithm, and ignorance.
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[0049] Such as figure 1 As shown, the present embodiment is an adaptive identification method for fan bearing faults. Taking a fan as an example, first, when the fan is in normal operation, the data of each monitoring point is collected according to the fan data acquisition and monitoring control system (SCADA), Clarify the physical meaning of each monitoring point, such as impeller speed, bearing temperature, gearbox oil pool temperature, gearbox inlet pressure, etc., and then establish the original high-dimensional training data set, and standardize the data; then according to the standardized For the training data, based on the deep belief network DBN, the dual monitoring limits of the feature space monitoring quantity and SPE statistics and the variable contribution measurement model based on the improved dynamic time warping DTW are respectively established, and the training phase ends. Afterwards, the whole model is put into practical application, assuming that the main ...
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