Power plants – Combustion products used as motive fluid – Process
Reexamination Certificate
2003-12-23
2009-10-06
Casaregola, Louis J (Department: 3741)
Power plants
Combustion products used as motive fluid
Process
C060S803000, C415S118000
Reexamination Certificate
active
07596953
ABSTRACT:
A method of detecting onset of a gas turbine condition, such as compressor stall, includes receiving data indicative of an operating parameter of a compressor of the gas turbine. The method also includes performing a wavelet transformation on the data to generate wavelet transformed data. The wavelet transformation is configured to affect a processing characteristic regarding a performance of the wavelet transformation. Features indicative of onset of the gas turbine condition in the wavelet transformed data are then identified to provide an indication for controlling the gas turbine to prevent compressor stall from occurring. A system for detecting onset of compressor stall in a gas turbine includes a sensor for providing data indicative of an operating parameter of the compressor and a processor for performing a wavelet transform on the data to identify features of the optimized wavelet transformed data indicative of onset of stall.
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Kande Mallikarjun Shivaraya
Krok Michael Joseph
Venkateswaran Narayanan
Casaregola Louis J
General Electric Company
Patnode Patrick K.
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