| 摘要 |
A wind-driven generator in which cutout control is more accurately performed by monitoring the presence of an abnormality in a measurement value obtained by a wind speed meter. The wind-driven generator has, in a nacelle (3) placed on a column, a main shaft connected to a rotor head (4), to which a wind impeller (5) is attached, and rotating together with the rotor head (4), a step-up gear (10) for increasing the speed of the main shaft after increasing it, a generator (11) driven by the output of the step-up gear (10), and a control section (20) for performing cutout control in strong wing where a measurement value obtained by the wind speed meter (7) is greater than or equal to a predetermined value. The control section (20) determines that the wind speed meter has an abnormality when there is a difference greater than a predetermined value between a measurement value obtained by the wind speed meter and an estimated wind speed value obtained from a relationship between a blade pitch angle of the wind impeller (5) and an output of the generator (11). |
