公开(公告)号：EP2072975A1

公开(公告)日：2009-06-24

申请号：EP07024657.4

申请日：2007-12-19

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  Gram & Juhl A/S

Inventor： Christinsen, Axel Juhl ,  Gram-Hansen, Klaus ,  Moeller, Troels Kildemoes

IPC: G01H1/00

CPC classification number: G01H1/06

Abstract: Method and apparatus for vibration-based automatic condition monitoring of a wind turbine (1), comprising the steps of:
determining a set of vibration measurement values of the wind turbine (1); calculating a frequency spectrum of the set of vibration measurement values; calculating a cepstrum of the frequency spectrum; selecting at least one quefrency in the cepstrum, and detecting an alarm condition based upon an amplitude of the cepstrum at the selected quefrency, and a wind turbine (1) therefor.

Abstract translation: 方法和用于风力涡轮机（1）的基于振动自动情况监测装置，包括以下步骤：确定挖掘一组风力涡轮机的振动测量数值（1）; 计算组振动测量数值的的频谱; 计算所述频谱的倒频谱; 选择至少一个逆频的倒频谱，并检测基于在所选逆频倒频谱的振幅报警条件，以及一种风力涡轮机（1）为此。