Measurement of sound efficiency of trailing edge serrations (TES) on wind turbines in the Jura mountains

摘要

ADEV Windkraft AG operates two wind turbines in St-Brais (Jura mountains in Switzerland). Given the particular topography and the proximity of the dwellings, the noise of wind turbines is clearly audible even if the immission limit values are respected. To overcome this effect, a retrofit of the blades has been done through the integration of trailing edge serrations (TES).