Towards robustness of H∞ suboptimal state feedback

Author

Chestnov, V.N.

Author_Institution

Dept. of Manuf. Autom., Technol. Univ., Moscow, Russia

fYear

1999

fDate

Aug. 31 1999-Sept. 3 1999

Firstpage

1666

Lastpage

1668

Abstract

In this paper we consider frequency properties and robustness of H_∞ suboptimal state feedback. It is shown that in spite of large gain and phase margins (at the plant input), the closed-loop H_∞ suboptimal system may not be robust in the sense that small parameter variations in the plant and/or the controller matrices may lead to instability. This situation is illustrated by a simple example.

Keywords

H^∞ control; Riccati equations; closed loop systems; frequency-domain analysis; robust control; state feedback; H_∞ suboptimal state feedback; Riccati equation; closed-loop H_∞ suboptimal system; frequency properties; large gain; phase margins; stability margins; Closed loop systems; Linear matrix inequalities; Regulators; Riccati equations; Robustness; State feedback; H∞ suboptimal control; Parameter variations; Riccati equation; Robustness; Stability margins;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (ECC), 1999 European

Conference_Location

Karlsruhe

Print_ISBN

978-3-9524173-5-5

Type

conf

Filename

7099553

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=706609