Wind turbine device, wind turbine device abnormality detection device, and wind turbine device abnormality detection method

摘要

The subject of this invention is providing the windmill apparatus provided with the braid | blade deformation | transformation measuring means which is excellent in workability and reliability, and can perform a highly accurate measurement. A windmill device used for wind power generation, comprising a blade that is a rotor blade, a rotor that supports the blade, a generator connected to the rotor, a nacelle that covers the rotor, and a tower that supports the nacelle. And means for detecting the passage of the blades in at least one place of the tower.