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Method for developing a unified quality assessment and providing an automated fault diagnostic tool for turbine machine systems and the like

  • US 6,973,396 B1
  • Filed: 05/28/2004
  • Issued: 12/06/2005
  • Est. Priority Date: 05/28/2004
  • Status: Expired due to Fees
First Claim
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1. A method for developing a unified quality assessment of a machine system based on sensor data characterizing one or more operational events of the machine system, at least some of the sensor data having associated correction parameters, the method comprising:

  • acquiring sensor data corresponding to a particular operational event;

    developing operational event specific signatures from parameter plots based upon acquired sensor data, at least some of the event signatures corresponding to sensor data from parameter plots corrected by utilizing one or more corrected parameter coefficients, wherein said corrected parameter coefficients reduce or eliminate variabilities in the sensor data caused by ambient operating conditions and/or fuel type or fuel quality;

    classifying signatures from both corrected and uncorrected parameter plots into one of a plurality of quality assessment categories based upon a predetermined degree of statistical correspondence between a signature and a pre-determined value or range of values; and

    combining quality assessment evaluations of signatures corresponding to both corrected and uncorrected parameter plots to develop a single comprehensive quality assessment value indicative of the machine system operation in response to said one or more operational events.

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