Research Article
Health Status Assessment for Wind Turbine with Recurrent Neural Networks
Table 9
Performance criterions of the ELM for wind turbine 2.
| SCADA variables | RMSE | MAE | BIAS | SDE |
| Generator speed | 0.351 | 0.266 | -0.248 | 0.248 | Generator temperature | 0.415 | 0.386 | -0.376 | 0.176 | Generator cooling air temperature | 0.416 | 0.357 | -0.351 | 0.223 | Generator bearing temperature | 0.063 | 0.046 | -0.019 | 0.061 | Gearbox temperature | 0.264 | 0.195 | -0.01 | 0.264 | Gearbox bearing temperature | 0.265 | 0.168 | -0.121 | 0.235 | Rotor speed | 0.293 | 0.175 | -0.183 | 0.266 | Battery box temperature | 0.251 | 0.239 | -0.235 | 0.087 | Hydraulic pressure | 0.507 | 0.419 | 0.386 | 0.33 | Shaft bearing temperature | 0.204 | 0.184 | -0.181 | 0.095 | Top box temperature | 0.256 | 0.185 | 0.134 | 0.218 |
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