CPC F02C 9/50 (2013.01) [G01D 3/08 (2013.01); G01D 21/02 (2013.01); G01H 1/12 (2013.01); G01H 3/12 (2013.01); F05D 2220/32 (2013.01); F05D 2240/35 (2013.01); F05D 2260/80 (2013.01); F05D 2260/821 (2013.01); F05D 2270/092 (2013.01); F05D 2270/333 (2013.01); F05D 2270/44 (2013.01); F05D 2270/71 (2013.01); F05D 2270/80 (2013.01); F05D 2270/81 (2013.01); F23N 5/16 (2013.01); F23N 5/242 (2013.01); G01H 9/002 (2013.01); G05D 11/02 (2013.01)] | 18 Claims |
1. A method for detecting blowout precursors in at least one gas turbine combustor, comprising receiving combustion dynamics acoustic data measured by an acoustic measuring device associated with the combustor in real time; performing wavelet analysis on the acoustic data using a simplified Mexican Hat wavelet transform analysis; and determining the existence of a blowout precursor based at least in part on the wavelet analysis, wherein said determining the existence of a blowout precursor comprises determining an increase in amplitude of time dependent spectral content in at least one predefined band of high frequency dynamics.
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