Self-tuning controller that extracts process model characteristi

Details Self-tuning controller that extracts process model characteristi Self-tuning controller that extracts process model characteristi

1993-07-22

1995-02-28

Envall, Jr., Roy N.

Boots, shoes, and leggings

364151, 364152, 364157, 364162, G05B 1304

Patent

active

053943228

ABSTRACT:
An apparatus and method for process control that extracts information from a process for developing a model of the process that is used to design system control. The apparatus includes means for selecting a process model form that has two or more selectable parameters. The apparatus also includes means for deliberately disturbing a process that is in open-loop operation and that is in a substantially settled state and further includes means for measuring the process response. The apparatus selects parameters for the process model form according to a function of the measured process response. In this way a complete model of the process is identified. The apparatus self-tunes by directly calculating new control parameters according to a function of the identified open-loop process model and a preselected target behavior.

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