Title :
On improving the robustness of LQ regulators
Author :
Grimble, M.J. ; Owens, T J
Author_Institution :
University of Strathclyde, Glasgow, Scotland
fDate :
1/1/1986 12:00:00 AM
Abstract :
Soroka and Shaked have shown that a linear quadratic state feedback regulator may suffer from poor robustness where small changes in the parameters of the system can lead to fast unstable closed-loop modes. It is shown there that the stability properties can be improved if possible nonminimum phase behavior is allowed for in modeling the system prior to the controller design.
Keywords :
Linear-quadratic control; Robustness, linear systems; State-feedback, linear systems; Control systems; Cost function; Councils; Equations; Open loop systems; Optimal control; Regulators; Robustness; Stability; State feedback;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.1986.1104111
