Research Article
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 |
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