Songqing Cao, Wanjun Hao, Hao Wang, Zhihui Sun, Jiayu Zhou. Prediction of Effective Wind Speed at Hub of Wind Turbine Based on Lidar-Armax[J]. Laser & Optoelectronics Progress, 2020, 57(17): 171407
- Laser & Optoelectronics Progress
- Vol. 57, Issue 17, 171407 (2020)
Fig. 1. Schematic of lidar measuring wind speed
Fig. 2. Schematic of measuring device
Fig. 3. Training wind speed sequence at 100 m in front of the hub
Fig. 4. Training wind speed sequence at 50 m in front of the hub
Fig. 5. First-order differential preprocessing results of wind speed
Fig. 6. Autocorrelation graph
Fig. 7. Partial autocorrelation diagram
Fig. 8. Measured wind speed sequence at 100 m in front of the hub
Fig. 9. Comparison of model output wind speed and measured wind speed at 50 m in front of the hub
Fig. 10. Fitting of wind speed test data at 50 m in front of the hub
Fig. 11. Comparison of predicted wind speed and estimated wind speed at the hub. (a) Overall comparison graph; (b) local comparison graph
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Table 1. BIC calculated values of different model structures
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