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Journal of Dynamic Systems, Measurement, and Control | Volume 107 | Issue 4 | Research Paper
RESEARCH PAPERS: Additional Technical Papers

A Direct Digital Control Algorithm for Control of a Single Environmental Space

[+] Author and Article Information
D. B. Cherchas

Department of Mechanical Engineering, University of British Columbia, Vancouver, B.C., Canada V6T 1W5

A. Abdelmessih

Department of Mechanical Engineering, University of Toronto, Toronto, Ontario, Canada M5S 1A4

M. Townsend

Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Va

J. Dyn. Sys., Meas., Control 107(4), 324-331 (Dec 01, 1985) (8 pages) doi:10.1115/1.3140743 History: Received September 10, 1985; Online July 21, 2009
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Abstract

A direct digital control algorithm for control of dry bulb temperature in a single environmental space is developed. The algorithm is based on a bilinear mathematical model, developed in the paper, of the response of the space dry bulb temperature and moisture content. The algorithm is somewhat unique in that it includes feedback and feedforward terms in a manner respecting the bilinear nature of the controlled process and as well, minimizes a practical performance index. The discrete time form of the algorithm is presented and simulation results given.
Copyright © 1985 by ASME
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