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METHOD FOR NON-INTRUSIVE LOAD MONITORING USING A HYBRID SYSTEMS STATE ESTIMATION APPROACH

  • US 20110144819A1
  • Filed: 12/16/2009
  • Published: 06/16/2011
  • Est. Priority Date: 12/16/2009
  • Status: Active Grant
First Claim
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1. A method for non-intrusively monitoring a load including a plurality of appliances, the method comprising:

  • retrieving a plurality of mathematical models, each of the models modeling operation of a respective subset of the appliances;

    predicting a value of a respective operational parameter for each said subset of the appliances;

    measuring an output of the load;

    calculating a respective value of each of the operational parameters, the calculating being based on the mathematical models and the outputs of the load;

    repeating the predicting, measuring and calculating steps until a metric pertaining to a difference error between the measured output and the predicted output calculated from the operational parameter and the mathematical models is equal to or below a threshold for one said subset of the appliances; and

    deciding that each said appliance in the one said subset of the appliances whose metric pertaining to a difference error is equal to or below the threshold is currently operating.

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