Adaptive Control of Multivariable Processes With Two Sampling Frequencies

[+] Author and Article Information
Qiusheng Zhang

Research Institute of Information Science, Beijing, People’s Republic of China

J. Dyn. Sys., Meas., Control 112(4), 782-783 (Dec 01, 1990) (2 pages) doi:10.1115/1.2896209 History: Received December 26, 1987; Revised February 03, 1989; Online March 17, 2008


An adaptive control algorithm with two sampling frequencies was proposed in Zhang and Tomizuka (1988). The algorithm is less computationally intensive than regular adaptive control schemes when controlling those first-order multivariable industrial processes in which two groups of subsystems have separate time constants. In this case the steady-state errors are bounded by a deadzone. This note improves this result by using a better-designed deadzone, thus leading to smaller tracking errors.

Copyright © 1990 by The American Society of Mechanical Engineers
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