VIBRATION CONTROL APPARATUS OF WIND TURBINE GENERATOR AND WIND TURBINE GENERATOR

摘要

A vibration control apparatus of a wind turbine generator that can be installed in a small space inside a tower, without a weight increase of the tower, and that can change the natural frequency thereof is provided. Included is a swinging rod 23 extending in the vertical direction and suspended from beams 15 and 16 provided on an upper part of the tower via a first universal joint 31; a flange part 24 extending outward from the upper end outer surface of the swinging rod 23 in the radial direction along the circumferential direction; a pendulum 21 including a bob attached to the swinging rod 23 and capable of moving up and down in the vertical direction; and a plurality of attenuation devices 22 each of whose upper end is attached to the beams 15 and 16 with a second universal joint 32 and whose lower end is attached to the flange part 24 with a third universal joint 33.