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- Title
Brief communication: Nowcasting of precipitation for leading-edge-erosion-safe mode.
- Authors
Tilg, Anna-Maria; Hasager, Charlotte Bay; Kirtzel, Hans-Jürgen; Hummelshøj, Poul
- Abstract
Leading-edge erosion (LEE) of wind turbine blades is caused by the impact of hydrometeors, which appear in a solid or liquid phase. A reduction in the wind turbine blades' tip speed during defined precipitation events can mitigate LEE. To apply such an erosion-safe mode, a precipitation nowcast is required. Theoretical considerations indicate that the time a raindrop needs to fall to the ground is sufficient to reduce the tip speed. Furthermore, it is described that a compact, vertically pointing radar that measures rain at different heights with a sufficiently high spatio-temporal resolution can nowcast rain for an erosion-safe mode.
- Subjects
WIND turbines; HYDROMETEOROLOGY; WIND erosion; RAINDROPS; METEOROLOGICAL precipitation
- Publication
Wind Energy Science, 2020, Vol 5, Issue 3, p977
- ISSN
2366-7443
- Publication type
Article
- DOI
10.5194/wes-5-977-2020