The invention relates to the technical field of
data processing and
signal analysis, and discloses a
steam turbine generator unit vibration-power cross-domain
feature fusion analysis method and
system, and the method comprises the steps: obtaining vibration
signal time sequence data and power
signal time sequence data of multiple operation cycles of a
steam turbine generator unit, carrying out the preprocessing of the two types of data, and obtaining a power signal
time sequence data; obtaining standardized time sequence data which can be used for
feature extraction; vibration signal features and power signal features are extracted from the standardized time sequence data, and cross-domain feature vectors of all operation cycles are formed through fusion; inputting the cross-domain
feature vector of each operation cycle into a fusion analysis model for
processing, and outputting a comprehensive evaluation index of each operation cycle; and on the basis of the multiple operation cycle comprehensive evaluation indexes, operation abnormity identification and early warning judgment of the
steam turbine generator unit are executed, and accurate monitoring of the
unit operation state is achieved. According to the invention, the technical problem of insufficient evaluation precision caused by a single signal
analysis method in the prior art is solved.