Microcomputer Implementation of Direct Digital Control Algorithms for Thermal Process Control Applications

[+] Author and Article Information
D. Jacobs, L. F. Donaghey

Materials and Molecular Research Division, Lawrence Berkeley Laboratory and Department of Chemical Engineering, University of California, Berkeley, Calif.

J. Dyn. Sys., Meas., Control 99(4), 233-240 (Dec 01, 1977) (8 pages) doi:10.1115/1.3427113 History: Received August 10, 1977; Online July 13, 2010


The implementation and performance of direct digital control algorithms in a microcomputer-based controller was studied in relation to the control of nonlinear thermal processes. Particular emphasis was given to discrete algorithms such as proportional-integral and finite time settling control algorithms. Experimental studies were carried out with a nonlinear diffusion furnace controlled by an Intel 8080-based microcomputer system, on which the control algorithms were implemented. The performance of different, modified, linear control algorithms were evaluated in thermal process control applications.

Copyright © 1977 by ASME
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