WIND-DRIVEN ELECTRICITY GENERATION DEVICE, METHOD OF CONTROLLING WIND-DRIVEN ELECTRICITY GENERATION DEVICE, AND COMPUTER PROGRAM

摘要

A wind-driven electricity generation device where the number of collisions of flying objects to a blade and bird strikes are reduced. The wind-driven electricity generation device has a tower erected on the ground, a nacelle fixed to the tower, blades rotatably fixed to the nacelle with a hub in between, an obstacle search device capable of detecting a flying object in front, on the windward side, and blade angle control means for controlling the change in the angle of the blades including a rotation stop position. The obstacle search device continuously searches for a flying object, and when it is determined that a flying object is approaching the electricity generation device, the obstacle search device performs control so that the blade angle control means changes the angle of the blades to the rotation stop position.