Health Status Assessment for Wind Turbine with Recurrent Neural Networks

Table 5

Performance criterions of the ELM for wind turbine 1.

SCADA variables	RMSE	MAE	BIAS	SDE
Generator speed	0.28	0.23	0.097	0.287
Generator temperature	0.4	0.34	0.29	0.28
Generator cooling air temperature	0.17	0.13	0.09	0.14
Generator bearing temperature	0.24	0.2	0.2	0.13
Gearbox temperature	0.24	0.2	0.078	0.23
Gearbox bearing temperature	0.22	0.17	0.042	0.212
Rotor speed	0.13	0.017	0.19	0.13
Battery box temperature	0.59	0.57	0.57	0.152
Hydraulic pressure	0.284	0.967	-0.092	0.34
Shaft bearing temperature	0.55	0.54	0.54	0.189
Top box temperature	0.049	0.033	0.01	0.049