Patent ID: 11905927
Assignee: VESTAS WIND SYSTEMS A/S
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC B  F

Claim 7:
8. The system according to claim 1, wherein the program code causes the system to determine the condition of the wind turbine based on the first spectral density by:
defining at least one frequency bin covering a portion of the first spectral density;
determining one or more of a maximum amplitude, a mean amplitude, and a minimum amplitude of the portion of the first spectral density covered by the at least one frequency bin;
comparing the one or more of the maximum amplitude, the mean amplitude, and the minimum amplitude of the portion of the first spectral density to a respective alarm threshold; and
triggering an alarm if the one or more of the maximum amplitude, the mean amplitude, and the minimum amplitude exceeds its respective alarm threshold.