Wind power installation with at least one elastically deformable component and a method for detecting the beginning of a wear component - radical usage duration in a wind energy plant

摘要

Wind power installation with a rotor and with at least one elastically deformable component as a structural part and / or bearing part, on which in the operational process of changing wind conditions dependent, different deformation forces which act to one of the component use duration result of which lead, characterized by the,in a time-delayed manner that a repetitive, in each case the same wind state is predetermined, to which a certain, in each case is associated with the same deformation force, and such a wind state with a detection unit (33, 34, 35) can be detected can be seen and,that in the case of recognition and detection of such a predetermined wind state (2) automatically by a measuring process a start signal is started and carried out (3), wherein for a component monitoring with at least one component part assigned sensor and a downstream mess - and evaluation unit (37) a component deformation as a parameter for a current component rigidity, is measured and the measured value is stored,that with a comparator of the mess - and evaluation unit (37) a comparison of a current deformation measurement value with respect to previous, stored deformation measurement values (9) is carried out with the result of,that the over a relatively long service life of stored deformation measurement values, or the corresponding parameters for the component stiffness are approximately the same and a from the measured values, of the measurement (14) is formed a plateau region (17) with in the course ofn="18" this service life of a small inclination increase for the shaping or a small inclination waste for the component stiffness is formed, so that a further reliable component function is determined, orthat alternatively via a with respect to the service life of the plateau region short service life of successively acquired deformation measurement values are successively and progressively greater, so that the plateau region with a relative to the region of the plateau greater pitch increase of a measurement with respect to the shaping of the or one with respect to the inclination of the plateau region more pronounced inclination waste from a measured curve (14) with respect to the component stiffness (19) is left, as a result of which the beginning of a wear, require predeterminable component - radical usage duration is determined and a corresponding warning information is output (12).