Design of an Intelligent Controller in a Deaerating System Based on a Rough Sets Theory

Expounded is the control tactic and establishment of a knowledge database for an intelligent controller in a deaerating system.With a rough sets theory serving as a basis,redundant attributes have been simplified,resulting in a most simplified knowledge database.A method is presented for designing an intelligent controller and establishing a knowledge database by making use of the rough sets theory.The intelligent controller thus designed was once used in the modification of a deaerating system for a power-supply station affiliated to an oil refinery.The practical operation shows that the controller under discussion can guarantee the stable operation of the system during a start-up and switching-over process with operating indexes of the deaerating system being fulfilled.