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Design of hierarchical computer control systems for industrial plant. Part 2: Development of hierarchical controls for a multiple-effect evaporator

Design of hierarchical computer control systems for industrial plant. Part 2: Development of hierarchical controls for a multiple-effect evaporator

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  • Author(s): D.J. Sandoz 1  and  O. Wong 2
    • View affiliations
    • Affiliations: 1: North West Region, Control Engineering Group, ICI Ltd., Runcorn, UK
      2: Department of Industrial Management and Engineering, Massey University, Palmerston North, New Zealand
  • Source: Volume 125, Issue 11, November 1978, p. 1299 – 1306
    DOI:  10.1049/piee.1978.0276 , Print ISSN 0020-3270, Online ISSN 2053-7891
© The Institution of Electrical Engineers
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A generalised control algorithm is developed for application to industrial processes. The algorithm can cater for multivariable interactions, time delays and environmental disturbances. It is proposed as a fundamental building block for the development of hierarchical control schemes. The algorithm is a feature of a c.a.d. facility for the modelling, design and implementation of hierarchical computer controls. The facility incorporates interactive graphics as a major design aid. Application to a multiple-effect evaporator is described. It is demonstrated that the techniques have realistic potential for useful practical application.

Inspec keywords: evaporation; multivariable control systems; industrial computer control; food processing industry; control system CAD; hierarchical systems

Other keywords: time delays; interactive graphics; environmental disturbances; multiple effect evaporator; hierarchical computer control systems; industrial plant; multivariable interactions; generalised control algorithm

Subjects: Multivariable control systems; Control engineering computing; Control system analysis and synthesis methods; Control technology and theory (production); Industrial applications of IT; Food industry; Control applications in food processing industries

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This article has the following associated article(s):
Design of hierarchical computer control systems for industrial plant. Part 1: Modelling of the output dynamics of a multiple-effect evaporator
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