Vibration fault diagnosis method of wind power generator and storage medium
A wind turbine and fault diagnosis technology, which is applied in the direction of engine testing, computer components, machine/structural components testing, etc., can solve problems such as fault analysis mode aliasing
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[0048] In order to explain in detail the technical content, structural features, achieved goals and effects of the technical solution, the following will be described in detail in conjunction with specific embodiments and accompanying drawings.
[0049] see figure 1 , the method for diagnosing a vibration fault of a wind power generator described in the present embodiment includes the following steps:
[0050] Step S110: Obtain the vibration signal f(t) of the wind generator; the vibration signal of the wind generator can be obtained through the vibration sensor, and the fault occurs in different parts of the wind generator, such as the inner ring of the bearing, the outer ring of the bearing, and the rolling body. Fault; when the wind turbine is working, the vibration sensor can obtain the vibration signals of the wind turbine bearing inner ring, bearing outer ring and rolling elements.
[0051] Step S120: Decompose the obtained vibration signal by the variational mode decom...
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