WIND TURBINE DIAGNOSTIC DEVICE FOR GENERATOR COMPONENTS

摘要

A wind turbine diagnostic device for diagnosing mechanical damage to generator components of at least one wind turbine, comprising at least one speed sensor for determining a variation over time of the rotational speed of a generator of a wind turbine, the speed sensor having at least one speed signal output for outputting the determined variation over time of the rotational speed, a frequency analysis module and a frequency spectrum signal output for outputting a frequency spectrum, the frequency analysis module determining a frequency spectrum from the determined variation over time of the rotational speed, and a comparator element for comparing a frequency spectrum with a prescribed standard frequency spectrum and for diagnosing mechanical damage to generator components on the basis of the comparison. This increases the possibility of predicting mechanical damage to generator components caused by vibrations.

主权项

1. A wind turbine diagnostic device for diagnosing mechanical damage to one or more generator components of at least one wind turbine, comprising:
at least one speed sensor for determining a variation over time of a rotational speed of a generator of the at least one wind turbine, the speed sensor having at least one speed signal output for outputting the determined variation over time of the rotational speed; a frequency analysis module with at least one speed signal input connected to the speed signal output by a speed signal line, and a frequency spectrum signal output for outputting a frequency spectrum, the frequency analysis module being configured to determine a frequency spectrum from the determined variation over time of the rotational speed; and a comparator having a frequency spectrum signal input connected to the frequency spectrum signal output by a frequency spectrum signal line, the comparator being configured to compare a frequency spectrum with a prescribed standard frequency spectrum and to diagnose mechanical damage to the one or more generator components based on the comparison.