Iterative solver approach for turbine interactions: application to wind or marine current turbine farms

APPLICATION OF A DYNAMIC PROGNOSTIC MAINTENANCE POLICY TO offshore wind turbine farms

Many industries identify condition monitoring as a major opportunity to reduce maintenance costs and increase equipment availability. This is also the case for the fast emerging offshore wind turbine technology. However, when considering offshore wind turbine farms, implementation of condition monitoring also introduces a significant capital investment cost. Moreover, condition monitoring syste...

'Wind turbine syndrome': fact or fiction?

OBJECTIVE Symptoms, including tinnitus, ear pain and vertigo, have been reported following exposure to wind turbine noise. This review addresses the effects of infrasound and low frequency noise and questions the existence of 'wind turbine syndrome'. DESIGN This review is based on a search for articles published within the last 10 years, conducted using the PubMed database and Google Scholar ...

Introduction to wind turbine design

2.1 Structure of the atmospheric boundary layer Wind is moving air caused by pressure differences in the atmosphere, initiated by temperature differences. At large heights (~1000 m) the wind is not perpendicular to the isobars but parallel to it due to the Coriolis force (perpendicular to the wind direction, caused by the rotation of the earth). This wind is denoted the geostrophic wind. G : pr...

Wind Turbine Generator Technologies

Wind Turbine Tower Resonance

Wind turbine towers are large structures designed to withstand the unique loading conditions imposed on them by the turbine’s nacelle and dynamic forces from the rotating blades. Observations and noise measurements of a particular wind turbine showed high noise levels at approximately 48 Hz, which could not be explained from the usual known potential noise sources. Correlated far field noise me...