• Generator Temperature—The high generator phase temperature (89.3°C) has by far the most significant positive influence (+8.52°C) on the bearing temperature. • Wind Speed—Wind speed makes relatively small positive
not obvious (the range of wind temperature change was also relatively limited). Fig 2.1 Trend diagram after 3000rpm Fig 2.2 Trend chart when falling from maximum value to The
The research presented in this paper draws upon synchronised databases of generator bearing vibration time series and failure events from a turbine original equipment manufacturer (OEM). This allows multiple vibration
Direct-drive (DD) permanent magnet (PM) wind turbine generators (WTGs) require a substantial amount of expensive rare-earth PM material in their construction. The quantity of PM material
This dataset contains all the data of five wind turbines (T01, T06, T07, T09, T11), each with a rated power of 2 MW, whose theoretical cut-in wind speed is 4 m/s and the theoretical rated wind speed is 12 m/s. The generator
operation, the factory conducted the variable wind temperature test and found that the vibration change was Turbine generator set vibration and accident[M]. China Electric Power
Evaluation of the bearing in horizontal, axial, and vertical, with an accuracy of 91%. Non-stationary vibration signal in the absence of an external hardware sensor. Acoustic and vibration signals for different fault cases for gearbox in Wind turbine generators, with hybrid ensemble is developed by stacking the RF, DT, KNN.
Currently, the state of the art in wind turbine fault detection is limited to vibration as the sole variable. However, vibration sensors can only detect 5–20% of torsional vibration in the drivetrain, caused by the dynamic and natural frequency of the system .
Currently, there is not a set of established industry standards or acceptance criterion for generator end winding vibration. There are many differing points of view within the power industry concerning the sources of vibration, methods of analysis, and solutions.
When a force is generated from the magnetic field of the current carrying conductor then the ground structure will generate an equal force in the opposite direction. The final result will be an oscillating vibration signal at 60 Hz. The system mechanical vibration is due to the prime mover that is driving the generator.
The vibration of generator end windings has been a topic of concern since the beginning of power generation. Current flowing in the rotor and stator give rise to magnetic fields. The resulting forces lead to vibration within the stator core, but more seriously at the stator end windings and their support structures.
Vibration signal analysis has emerged as a promising technique for fault detection due to its effectiveness in identifying machinery problems. However, non-stationary vibration signatures produced by wind turbines present challenges for traditional diagnostic approaches.
