A mathematical model of the effect of pitch angle on power performance of a small HAWT

Optimization of wind turbine aerodynamic performances implies solving the problem in the domains such as airfoil selection, blade rotation angle, number of blades, etc. The current article studies the effect of blade rotation angle [Formula: see text] at the flow velocity in the wind tunnel [Formula: see text] and a specific number of revolutions on the horizontal axis wind turbine – HAWT output power. The experiment involved two models of blades. Based on planning the experiment, mathematical models were created to be applied in practice. The highest number of revolutions [Formula: see text] and generator output [Formula: see text] were achieved at the velocity of [Formula: see text]