Design of a Trajectory Insensitive Regulator With Prescribed Degree of Stability

[+] Author and Article Information
M. Saif

School of Engineering Science, Simon Fraser University, Burnaby, BC V5A 1S6 Canada

J. Dyn. Sys., Meas., Control 112(3), 513-516 (Sep 01, 1990) (4 pages) doi:10.1115/1.2896173 History: Received September 26, 1987; Revised April 25, 1988; Online March 17, 2008


The paper outlines an approach for designing a trajectory insensitive optimal linear quadratic regulator (LQR) with prescribed degree of stability for uncertain plants. The state trajectory insensitivity to structural uncertainties is achieved by designing a robust suboptimal controller of proportional state, and proportional derivative of state type. The prescribed degree of stability is obtained by appropriate modification of the quadratic cost functional. The proposed method is superior to some recent approaches as far as the computational complexity and robustness are concerned.

Copyright © 1990 by The American Society of Mechanical Engineers
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