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Method and system for compressor health monitoring

  • US 8,471,702 B2
  • Filed: 12/22/2010
  • Issued: 06/25/2013
  • Est. Priority Date: 12/22/2010
  • Status: Active Grant
First Claim
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1. A method for compressor health monitoring comprising:

  • receiving a plurality of turbine data points, wherein each of the turbine data points comprise one or more operating parameters and at least one of a compressor discharge temperature (CTD), and one or more performance parameters;

    categorizing the turbine data points into a plurality of bands based on the one or more operating parameters;

    computing a baseline variability measure of at least one of the CTD and the one or more performance parameters, for each of the plurality of bands over a first time window;

    computing a current variability measure of at least one of the CTD and the one or more performance parameters, for each of the plurality of bands over a second time window, wherein the second time window is shorter than the first time window;

    comparing the baseline variability measure and the current variability measure; and

    generating an alarm indicator if the current variability measure deviates from the baseline variability measure by a predefined difference.

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