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RESEARCH PAPERS: Papers in Thermofluid Area

Multivariable Direct Adaptive Control of Thermal Mixing Processes

[+] Author and Article Information
Qiusheng Zhang, Masayoshi Tomizuka

Department of Mechanical Engineering, University of California, Berkeley, CA 94720

J. Dyn. Sys., Meas., Control 107(4), 278-283 (Dec 01, 1985) (6 pages) doi:10.1115/1.3140736 History: Received October 16, 1985; Online July 21, 2009

Abstract

Multivariable direct adaptive control is tested on a nonlinear thermal mixing process and is compared with state space based nonadaptive controllers. The linear quadratic optimal control approach is used to design two nonadaptive controllers: one without integral action (ordinary LQ) and the other with integral action (LQI). The operating point is changed over a wide region in the experiment. The adaptive controller is verified to perform most consistently under the tested conditions.

Copyright © 1985 by ASME
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