Wind power generator set failure frequency component extraction method

The invention relates to a wind power generator set failure frequency component extraction method and belongs to the technical field of rotating machinery failure. According to the method, dimension of a horizontal ordinate of frequency spectrum is changed from hertz to dimensionless order by utiliz...

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Bibliographische Detailangaben
Hauptverfasser:	LI CHAOFENG, LI JIA, CHU YONGGANG, TIAN YONG, SU JING
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING PHYSICS SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR TESTING
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Beschreibung
Zusammenfassung:	The invention relates to a wind power generator set failure frequency component extraction method and belongs to the technical field of rotating machinery failure. According to the method, dimension of a horizontal ordinate of frequency spectrum is changed from hertz to dimensionless order by utilizing an average rotating speed, and failure frequency of the a wind turbine in different rotation speeds is allowed to keep unchanged so as to realize amplitude extraction of the failure frequency. The method effectively overcomes the defects of low high-order precision and additional noise of an order analysis method, is small in computation amount, is suitable for an embedded system, and provides an effective technological mean for failure frequency component extraction of a wind power generator set and other variable rotation speed rotary machines.