Quantifying the fatigue life of wind turbines in cyclone-prone regions
- Publisher:
- Elsevier
- Publication Type:
- Journal Article
- Citation:
- Applied Mathematical Modelling, 2022, 110, pp. 455-474
- Issue Date:
- 2022-10-01
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| Quantifying the fatigue life of wind turbines in cyclone-prone regions.pdf | Published version | 4.35 MB |
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Wind turbines are designed to harvest kinetic energy of the wind, which are more susceptible to the impact of tropical cyclones compared with other high-rise structures. Most of the existing research of cyclone (hurricane/typhoon) impacts on wind turbine merely concentrated on its short-term failure (strength or stability failure). However in this paper, it is evidently demonstrated that cyclones can also have a significant impact on the long-term failure (fatigue failure) of a wind turbine. In this study, a novel framework is developed in the fatigue life evaluation of a wind turbine, in which two external factors, i.e., the progressive change of cyclone direction and intensity observed at a specific site, combined with one internal factor, i.e., a parked wind turbine with feathered or unfeathered blades are considered. Subsequently, the effect of cyclone-normal-wind direction misalignment and cyclone average recurrence intervals are included to have a synthetic assessment on the damage potential of cyclones. The proposed fatigue analysis framework can be also extended to other structures, e.g., the hybrid wind-tidal energy conversion system in cyclone-prone regions.
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