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IEE Colloquium on Applied Developments in Process Control

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• IEE Colloquium on Applied Developments in Process Control' (Digest No.32)

Publication Year: 1989
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The following topics were dealt with: soft-sensors; process control structures; optimal control in gas-processing; optimisation and parameter estimation; supervisory and SCADA based packages; and distribution control system for combined cycle conversion power plant View full abstract»

• Distribution control system for combined cycle conversion power plant

Publication Year: 1989, Page(s):7/1 - 7/4
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Describes how a major middle east aluminium smelting plant is converting five gas turbines to combined cycle operation to produce power for 76 new reduction cells. This requires of the installation of five waste heat boilers which are fed with their associated gas turbine exhaust gases. The waste heat boilers operate in parallel to produce steam for a 65 MW steam turbine generator. The electrical ... View full abstract»

• Novel applications of supervisory and SCADA based packages using programmable logic controllers

Publication Year: 1989, Page(s):6/1 - 6/3
Cited by:  Papers (2)
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Describes the application of programmable controllers in the field of continuous process control. In the example considered programmable controllers have been used to fully automate two major blast furnace installations at SIDMAR NV steel works in Belgium. The furnace reflects the application of state of the art technology both in terms of choice of control system and in the exploitation of the la... View full abstract»

• Process control structures: theory and practice-a review

Publication Year: 1989, Page(s):2/1 - 2/3
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The synthesis of good control is the primary objective of a control engineer. Whilst there are numerous control synthesis methods, the same cannot be said for choosing the system model and controller structure. The main reasons for the difficulty in structure selection are the multivariable nature of most process plants and the interactions among various plant variables. This necessitates looking ... View full abstract»

• Customised optimisation for increased computational efficiency

Publication Year: 1989, Page(s):5/1 - 5/2
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The control of a large process plant usually requires the generation of a set-up', a set of set points which are applied to the plant. Set-up algorithms fall into two types: empirical set-up algorithms; and generally optimised set-up algorithms. Empirical set-up algorithms are usually designed to perform quickly, and are common in on-line systems. They are usually sub-optimal in the set-ups they ... View full abstract»

• Soft-sensors in industrial process control

Publication Year: 1989, Page(s):1/1 - 1/3
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Two methods for inferring (soft-sensing) process outputs which can only be measured at infrequent intervals of time, from other more rapidly sampled secondary outputs, have been developed. One estimator is based upon a general input-output representation of the plant as the starting point for synthesis, the second method, starts from state space considerations and uses an observer canonical form f... View full abstract»

• Application of an optimal control scheme to a small gas-processing plant

Publication Year: 1989, Page(s):3/1 - 3/4
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The development of an AI product COGSYS designed to support reasoning within real-time constraints is being supported by 35 major manufacturing companies. British Gas have chosen a methanator feed gas production plant (MFGPP) for a demonstration of COGSYS. It is intended that COGSYS will address a number of key areas of process plant control including the intelligent control of highly coupled cont... View full abstract»

• Application of an optimisation and parameter estimation algorithm to a process control plant. Simulation and on-line results

Publication Year: 1989, Page(s):4/1 - 4/4
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An industrial process can be regarded as a collection of interconnected subprocesses, and its control problem as a collection of interlinked subproblems of manageable size. Each subprocess has its own local regulatory and optimising decision units, and co-ordination is performed at a supremal level to ensure that overall system objectives and constraints are satisfied. Optimisation of the decompos... View full abstract»