It is desirable for developers, operators and regulators to be able to predict with confidence the noise environment around future large wind turbine generator installations. Other research programs have produced extensive acoustic measurements and observations for horizontal axis wind turbines (both upwind and downwind configurations) for a wide range of sizes (power ratings) and operating conditions (see Refs. 1-8). The results to date have provided a basis for development of interim environmental noise impact criteria for siting and operations of wind power stations as well as a data bank for validation of noise prediction models.
The present study provides basic acoustic data for the MODS-B machine and extends the previously available data base with results for a machine which incorporates advanced technology features such as variable rpm, trailing edge tabs and vortex generators.
This effort is part of the Department of Energy Wind Energy Program managed by the Solar Energy Research Institute. Data were obtained with the assistance and cooperation of the Boeing Company personnel at the site.