Health Status Assessment for Wind Turbine with Recurrent Neural Networks

Table 8

Performance criterions of the ELMAN for wind turbine 2.

SCADA variables	RMSE	MAE	BIAS	SDE
Generator speed	0.314	0.175	-0.151	0.262
Generator temperature	0.088	0.067	0.04	0.088
Generator cooling air temperature	0.126	0.103	0.22	0.124
Generator bearing temperature	0.314	0.288	0.288	0.123
Gearbox temperature	0.21	0.122	0.017	0.031
Gearbox bearing temperature	0.215	0.155	-0.15	0.154
Rotor speed	0.294	0.18	-0.148	0.249
Battery box temperature	0.27	0.262	0.262	0.067
Hydraulic pressure	0.343	0.32	0.32	0.122
Shaft bearing temperature	0.207	0.19	-0.189	0.086
Top box temperature	0.371	0.364	0.364	0.072