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Plant control apparatus

  • US 20030120360A1
  • Filed: 12/20/2002
  • Published: 06/26/2003
  • Est. Priority Date: 04/20/2001
  • Status: Active Grant
First Claim
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1. A control system for a plant, comprising:

  • identifying means for identifying a model parameter vector of a controlled object model which is obtained by modeling said plant, based on an input and an output of said plant; and

    a sliding mode controller for controlling said plant using the model parameter vector identified by said identifying means;

    said identifying means comprising;

    identifying error calculating means for calculating an identifying error of the model parameter vector;

    updating vector calculating means for calculating an updating vector according to said identifying error; and

    updating vector correcting means for correcting said updating vector by multiplying a past value of at least one element of said updating vector by a predetermined value which is greater than 0 and less than 1;

    wherein said identifying means calculates the model parameter vector by adding the corrected updating vector to a reference vector of the model parameter vector.

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