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SYSTEM AND METHOD FOR ADVANCED CONDITION MONITORING OF AN ASSET SYSTEM

  • US 20090300417A1
  • Filed: 05/29/2008
  • Published: 12/03/2009
  • Est. Priority Date: 05/29/2008
  • Status: Active Grant
First Claim
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1. A method for advanced condition monitoring of an asset system, the method comprising the steps of:

  • segmenting an operating space of an asset system into a plurality of operating regimes;

    using a plurality of auto-associative neural networks (AANNs) to determine estimates of actual values sensed by the at least one sensor in at least one of the plurality of operating regimes;

    determining a residual between the estimated sensed values and the actual values sensed by the at least one sensor from each of the plurality of auto-associative neural networks;

    combining the residuals by using a fuzzy supervisory model blender;

    performing a fault diagnostic on the combined residuals;

    determining a change of the operation of the asset system by analysis of the combined residuals; and

    providing an alert if a change of the operation of the asset system has been determined.

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