Invention Grant
- Patent Title: Method and apparatus for vibration-based automatic condition monitoring of a wind turbine
- Patent Title (中): 风力发电机振动自动状态监测方法及装置
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Application No.: US12315309Application Date: 2008-12-02
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Publication No.: US08066486B2Publication Date: 2011-11-29
- Inventor: Axel Juhl Christinsen , Klaus Gram-Hansen , Troels Kildemoes Moeller
- Applicant: Axel Juhl Christinsen , Klaus Gram-Hansen , Troels Kildemoes Moeller
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Priority: EP07024657 20071219
- Main IPC: F01D5/00
- IPC: F01D5/00 ; F01D25/00 ; B63H1/00 ; B63H3/00 ; B63H5/00 ; B63H7/00 ; B64C11/00 ; B64C27/00 ; F03B3/12 ; F04D29/00
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.
Public/Granted literature
- US20090162186A1 Method and apparatus for vibration-based automatic condition monitoring of a wind turbine Public/Granted day:2009-06-25
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