Wind turbine and method of control of a wind turbine

摘要

The present invention concerns a wind turbine comprising a rotor (4) and a main shaft (6), wherein the main shaft (6) is coupled to the rotor (4) to transforming wind energy into kinetic energy of rotation of the main shaft (6), and wherein the main shaft (6) is mechanically coupled to a main generator (8) of the wind turbine (2), wherein the main generator (8) is realised to transform kinetic energy of rotation into electrical energy. The invention is characterized by a brake system comprising an energy recovery arrangement realised to recover at least part of the kinetic energy of the rotation of the main shaft (6) when the rotational speed of the rotor (4) is reduced by the brake system.