WIND TURBINE GENERATOR AND METHOD FOR CONTROLLING WIND TURBINE GENERATOR

摘要

Disclosed is a wind-power generation device which can be stopped without imparting a mechanical shock to a tower or windmill blades when a rotor sharply accelerates. When the rotational velocity of a windmill rotor (11) sharply accelerates and a pitch angle control device (20) drives the pitch angle of the blades toward the feathered side, a control unit (21) controls the driving velocity of the blades such that the velocity changes from high speed to low speed in a phase manner or continuously.