PSI - Issue 24

Francesco Castellani et al. / Procedia Structural Integrity 24 (2019) 495–509 F. Castellani et al. / Structural Integrity Procedia 00 (2019) 000–000

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An additional useful consideration can be drawn calculating the standard deviation of the power on the first 3000 s. of the time series: for the baseline model, it results to be 26.4 kW, while for HWRT is 135 kW (order of 5 times). This is a first evidence that may lead to suppose that the HWRT has a more stressful behaviour on mechanical components of the wind turbine and for this reason a deeper study is necessary.

10 6 Standard model generated power

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Power [W]

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Time [s]

Fig. 5. Standard model produced power

10 6 HWRT model generated power

2.5

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Power [W]

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Time [s]

Fig. 6. HWRT model produced power

A second analysis is performed considering the X direction forces acting on the blade root and on the tower base.