Glossary

Reference Wind Speed (Vref)

This is a basic parameter for wind speed, used for defining Wind Turbine classes. Other design related climatic parameters are derived from the reference wind speed and other basic Wind Turbine class parameters Note: A WT designed for a WT class with a reference wind speed Vref, is designed to withstand climates for which the extreme 10 min average wind speed with a recurrence period of 50 years at WT hub-height is lower than or equal to Vref..

 
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