Method and system for detecting precursors to compressor...

F - Mech Eng,Light,Heat,Weapons – 02 – C

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F02C 7/00 (2006.01) F02C 9/00 (2006.01) F04D 27/00 (2006.01)

Patent

CA 2442509

A method and system for detecting precursors to compressor stall and surge in which at least one compressor parameter is monitored to obtain raw data representative of said at least one compressor parameter. The raw data is pre-processed using a frequency demodulator (36, 136) to produce pre-processed data, and the pre-processed raw data is post-processed using a Kalman filter (40) to obtain stall precursors.

Il s'agit d'une méthode et d'un dispositif qui permettent de détecter les précurseurs de décrochage et de saturation de compresseur dans lesquels au moins un paramètre de compresseur est contrôlé pour obtenir des données brutes représentant au moins ledit paramètre. Les données brutes sont prétraitées au moyen d'un discriminateur de fréquence (36, 136) pour produire les données prétraitées. Ces données brutes prétraitées sont post-traitées au moyen d'un filtre de Kalman (40) pour obtenir des précurseurs de décrochage.

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