Abnormal Detection of Wind Turbine Based on SCADA Data Mining

Table 4

Feature parameters’ code of pitch 1 angle prediction.

Pitch system	Collective actual (measured) pitch angle
Gearbox	Temp. gearbox, temp. gearbox bearing, temp. shaft bearing
Power grid	Reactive power
Generator	Temp. generator 1, temp. generator 2, generator speed (CCU), generator speed (PLC), temp. generator cooling air
Environment variable	Temp. ambient, wind speed
Nacelle	Temp. nacelle, nacelle revolution
Rotor system	Rotor speed (PLC), temp. hub
Yaw system	Wind deviation 1 sec., wind deviation 10 sec.