Research Article
Fault Detection of Wind Turbine Pitch System Based on Multiclass Optimal Margin Distribution Machine
Table 4
Some correlation calculation results 2.
| Pearson correlation coefficient | Pitch angle 1 | U1 phase winding current (A) | Rotor speed | Current of pitch motor 1 | Yaw angle 1 | 0.99998 | −0.60992 | −0.97406 | −0.83843 | U2 phase winding current (A) | −0.58954 | 0.99863 | 0.64357 | 0.51048 | Pitch angle 2 | 0.99981 | −0.60992 | −0.97406 | −0.83843 | Current of pitch motor 2 | −0.85505 | 0.53974 | 0.83172 | 0.91606 |
|
|