WIND TURBINE WITH VERTICAL ROTATION AXIS AND METHOD FOR AERODYNAMIC BRAKE OF SUCH TURBINE

摘要

A wind turbine is presented with a vertical axis comprising components in order to provide the most effective means to control the rotation of a vertical axis wind turbine by a brake, which is able to activate itself without external actuation in malfunction situations and is able to shut down the vertical axis wind turbine. Therefore, a mass element is utilised to store mechanical energy which in turn is used to deploy an aerodynamic braking operation. It also represents a means to control and limit the amount of torque, as absorbed by the turbine in high-wind conditions, and thus provides the ability to harvest electrical /mechanical energy, beyond the normal operational wind speeds of turbines.