Performance Test of Winglet Horizontal Shaft Wind Turbine Against Cut In Speed

Wind turbines are devices that convert wind kinetic power into electrical energy through generators. Currently there has been a lot of research on horizontal shaft type wind turbines to improve systems that work optimally. This study uses a 3 blade horizontal winglet wing turbine wind turbine with variations in pitch angle to increase the cut in speed value. The pitch angles used are 0°, 2°, 4°, 6°, 8°, and 10°. This study uses an NACA 4412 aerofoil with winglets added to the blade tip. The research method used in this study is the experimental method. The results showed that the highest cut-in speed values of three, four and five blades were obtained at a pitch angle of 10° at wind speeds of 2.3 m/s , 1.8 m/s and 1.8 m/s.