PROCESS AND DEVICE FOR IDENTIFICATION OR PRE-CALCULATION OF PARAMETERS OF TIME-VARIANT INDUSTRIAL PROCESS

摘要

PURPOSE: A process and device for identification or precalculation of parameters of a time-variant industrial process is provided to match identified or precalculated process to variant driving condition of a corresponding process. CONSTITUTION: A Process condition information or measured value X0, X1, X2,..., Xn is provided to the process model. A process model includes reference model of a time-invariant or nearly time-invariant process, and the reference model forms an industrial process from a long-time mean value. Input or output value of a time-invariant or nearly time-invariant reference model is X0 or Yo. Figure number 2, 3 and 4 represents time-variant model and by which model, correction parameters of Y1, Y2,...,Yn are calculated from an input value of X1, X2,...,Xn. Correction parameters of Y1, Y2,...,Yn are calculated as Y0 by an operation(5,6 and 7) and the process parameter(Y) is provided at the output of a final operation, and the process parameter(Y) includes not only static part of a process but time-variant part of a process considering in time-variant model(2,3 and 4).