Minimum time, optimizing and stabilizing multivariable control method and system using a constraint associated control code
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United States of America Patent
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Apr 5, 1988
Grant Date -
N/A
app pub date -
Aug 6, 1986
filing date -
Aug 6, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In accordance with the present invention, a constraint dependent control method and system for a large scale refinery, chemical process or the like, is provided that allows on-line optimization of one and preferably two plant inputs without need for optimal set points, through iterative generation of a constraint dependent control code normalized to present time t for 'driving' the optimized plant inputs rapidly toward optimization but without destabilizing the plant. The generation of such control code includes evaluation of certain key components associated with elements of an optimizing and stabilizing control vector (OSC) from which the code is derived.
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