Suggestions for improving wind turbines power curves

摘要: Abstract The question is usually not whether a wind turbine can be designed to optimise the power production at site, but rather an existing turbines with certain rotor modified in order improve production. In this paper various methods for improving output were investigated experimentally and theoretically. effect of changing rotational speed on performance Nordtank 300 kW stall-regulated, horizontal axis was experimentally. This performed by setting program operating turbine. variation aerodynamic due pitch angle Hurghada farm. manufacture tip (–1.8°). study, changed two values (–2.8°) (–0.8°). Also, blade low ranges; vortex generators may used. These placed over low-pressure surface or part. types generators, rectangle triangle shapes investigated.