Method for detecting rotating stall in a centrifugal compressor
The invention provides a system and method for detecting rotating stall in a centrifugal compressor, which comprises following steps: detecting the value of the acoustic energy associated with the onset of rotating stall in the centrifugal compressor; performing a fast Fourier transform (FFT) based...
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| creator | BEAVERSON GREGORY KEITH STABLEY ROBERT EDWARD BENDER JAMES EDWIN |
| description | The invention provides a system and method for detecting rotating stall in a centrifugal compressor, which comprises following steps: detecting the value of the acoustic energy associated with the onset of rotating stall in the centrifugal compressor; performing a fast Fourier transform (FFT) based on the detected value to obtain a plurality of frequency and corresponding energy value; selecting the frequency and energy value associated with the rotating stall from the plural frequency and corresponding energy value; summing the corresponding energy value of the selected frequency associated with the rotating stall; comparing the summing energy value and the preset critical value to determine the rotating stall in the centrifugal compressor, in which when the summing energy value is largerthan the critical value, the rotating stall occurs in the centrifugal compressor. |
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performing a fast Fourier transform (FFT) based on the detected value to obtain a plurality of frequency and corresponding energy value; selecting the frequency and energy value associated with the rotating stall from the plural frequency and corresponding energy value; summing the corresponding energy value of the selected frequency associated with the rotating stall; comparing the summing energy value and the preset critical value to determine the rotating stall in the centrifugal compressor, in which when the summing energy value is largerthan the critical value, the rotating stall occurs in the centrifugal compressor.</description><language>chi ; eng</language><subject>BLASTING ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; HEATING ; INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS ; INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 ; 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| language | chi ; eng |
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| subjects | BLASTING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS WEAPONS |
| title | Method for detecting rotating stall in a centrifugal compressor |
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