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KILN THERMAL AND COMBUSTION CONTROL

  • US 20060020352A1
  • Filed: 09/26/2005
  • Published: 01/26/2006
  • Est. Priority Date: 05/06/1996
  • Status: Active Grant
First Claim
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1. A method for controlling a nonlinear system, comprising:

  • a linear controller receiving inputs representing measured variables of the system, wherein values of the measured variables of the system are in a first operating region, and wherein the linear controller is operable to determine predicted control values for manipulable variables that control the system;

    executing a nonlinear model of the system, wherein the nonlinear model has been trained to represent operation of the system over a specified region of the system'"'"'s operating space;

    initiating a change in operation of the system, wherein the change operates to move the values of the measured variables of the system from the first operating region to a second operation region, wherein said initiating comprises modifying the nonlinear model in accordance with the change in operation of the system;

    adjusting one or more parameters of the linear controller based on an associated one or more parameters of the nonlinear model as the values of the measured variables move;

    further modifying the one or more parameters of the linear controller in a specified manner as the values of the measured variables move from the first operating region to the second operating region;

    the linear controller determining predicted control values for the manipulable variables in response to said further modifying; and

    outputting the predicted control values for the manipulable variables, wherein the predicted control values are useable to control the system.

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