Vertical axis wind turbine with aerodynamic protection against overloads

Abstract

The goal is to create a turbine with a vertical axis, which would ensure the sensitivity of the repositioning of the blades under an angle of attack αm≠αopt and the braking of the angular velocity of the rotating shaft. The technical problem, which the invention solves, consists in the creation of a turbine with a vertical axis, which would ensure the sensitivity of the repositioning of the blades under an angle of attack and the braking of α≠α m opt the angular speed of the rotating shaft at speeds of air currents U that exceed the maximum limit admissible provided ∞ that the mechanical tensioning of the blades by their twisting deformation is excluded. Ensuring at maximum speeds of the air currents, respectively, at high angular speeds of the rotating shaft, the possibility of self-repositioning by pivoting the blades with an aerodynamic profile at an angle of attack , at α≠α m opt which to cause an increase in the aerodynamic resistance force F of the blade and decreasing the rotational angular D velocity of the implicit wheel shaft and electric generator.