Double loop iterative strategies for hierarchical control of industrial processes

M. Bryds, P. D. Roberts, M. M. Badi, I. C. Kokkinos, Normah Abdullah

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Two novel hierarchical structures are presented which determine the optimum steady-state operation of interconnected industrial processes despite deficiencies in the mathematical model. The techniques are of an iterative type and involve the successive solution of system optimization and model parameter estimation problems, utilizing information feedback from the real process. The computational task of each iterative strategy is divided into two nested iterative loops. The inner loop involves model based computations only, while the outer loop requires measurements from the real process. It is shown that this model based double iterative loop strategy has an important practical advantage in that it reduces the required number of set point changes to real subprocesses in order to achieve optimality. The paper investigates the optimality and convergence conditions of the techniques and gives a simulation example to illustrate the methods.

Original languageEnglish
Pages (from-to)743-751
Number of pages9
JournalAutomatica
Volume25
Issue number5
DOIs
Publication statusPublished - 1989

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Keywords

  • convergence of numerical methods
  • Hierarchical systems
  • iterative strategies
  • large scale systems
  • steady-state optimizing control

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Bryds, M., Roberts, P. D., Badi, M. M., Kokkinos, I. C., & Abdullah, N. (1989). Double loop iterative strategies for hierarchical control of industrial processes. Automatica, 25(5), 743-751. https://doi.org/10.1016/0005-1098(89)90030-7

Double loop iterative strategies for hierarchical control of industrial processes. / Bryds, M.; Roberts, P. D.; Badi, M. M.; Kokkinos, I. C.; Abdullah, Normah.

In: Automatica, Vol. 25, No. 5, 1989, p. 743-751.

Research output: Contribution to journalArticle

Bryds, M, Roberts, PD, Badi, MM, Kokkinos, IC & Abdullah, N 1989, 'Double loop iterative strategies for hierarchical control of industrial processes', Automatica, vol. 25, no. 5, pp. 743-751. https://doi.org/10.1016/0005-1098(89)90030-7
Bryds, M. ; Roberts, P. D. ; Badi, M. M. ; Kokkinos, I. C. ; Abdullah, Normah. / Double loop iterative strategies for hierarchical control of industrial processes. In: Automatica. 1989 ; Vol. 25, No. 5. pp. 743-751.
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