Health Status Assessment for Wind Turbine with Recurrent Neural Networks

Table 4

Performance criterions of the ELMAN for wind turbine 1.

SCADA variables	RMSE	MAE	BIAS	SDE
Generator speed	0.257	0.20	0.012	0.257
Generator temperature	0.255	0.221	0.221	0.127
Generator cooling air temperature	0.219	0.192	0.171	0.137
Generator bearing temperature	0.391	0.380	0.380	0.091
Gearbox temperature	0.156	0.095	-0.05	0.148
Gearbox bearing temperature	0.149	0.089	-0.036	0.145
Rotor speed	0.264	0.203	0.01	0.264
Battery box temperature	0.509	0.502	0.502	0.079
Hydraulic pressure	0.130	0.079	-0.045	0.122
Shaft bearing temperature	0.709	0.708	0.708	0.032
Top box temperature	0.18	0.145	0.132	0.123