公开(公告)号：US20090162186A1

公开(公告)日：2009-06-25

申请号：US12315309

申请日：2008-12-02

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

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

IPC: F04D15/00

CPC classification number: G01H1/06 ,  G05B23/024

Abstract: Method and apparatus for vibration-based automatic condition monitoring of a wind turbine, comprising the steps of: determining a set of vibration measurement values of the wind turbine; 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 therefor.

Abstract translation: 一种用于风力涡轮机的基于振动的自动状态监测的方法和装置，包括以下步骤：确定风力涡轮机的一组振动测量值; 计算该组振动测量值的频谱; 计算频谱的倒频谱; 在所述倒频谱中选择至少一个频率，以及基于所选择的反向频率下的倒频谱的振幅以及用于其的风力涡轮机来检测报警条件。

公开(公告)号：US08066486B2

公开(公告)日：2011-11-29

申请号：US12315309

申请日：2008-12-02

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

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

IPC: F01D5/00 ,  F01D25/00 ,  B63H1/00 ,  B63H3/00 ,  B63H5/00 ,  B63H7/00 ,  B64C11/00 ,  B64C27/00 ,  F03B3/12 ,  F04D29/00

CPC classification number: G01H1/06 ,  G05B23/024

Abstract: Method and apparatus for vibration-based automatic condition monitoring of a wind turbine, comprising the steps of: determining a set of vibration measurement values of the wind turbine; 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 therefor.

Abstract translation: 一种用于风力涡轮机的基于振动的自动状态监测的方法和装置，包括以下步骤：确定风力涡轮机的一组振动测量值; 计算该组振动测量值的频谱; 计算频谱的倒频谱; 在所述倒频谱中选择至少一个频率，以及基于所选择的反向频率下的倒频谱的振幅以及用于其的风力涡轮机来检测报警条件。