DocumentCode
487405
Title
Stability Theory for Linear Time-Invariant Plants with Periodic Digital Controllers
Author
Francis, Bruce A. ; Georgiou, Tryphon T.
Author_Institution
Department of Electrical Engineering, University of Toronto, Toronto, Ontario, Canada M5S 1A4
fYear
1988
fDate
15-17 June 1988
Firstpage
1225
Lastpage
1231
Abstract
This paper considers the control of a linear time-invariant plant by a digital controller composed of a sampler. a periodic discrete-time component, and a zero-order hold. The stability of such a configuration is analyzed in detail. It is shown how closed-loop zeros can be placed using such a scheme. As a consequence. it is proved that the gain margin can be arbitrarily assigned by suitable choice of sampling time and digital controller. The design procedure is constructive, using state-space methods.
Keywords
Circuits; Control systems; Difference equations; Digital control; Frequency domain analysis; Memory management; Robust control; Sampling methods; Stability analysis; State-space methods;
fLanguage
English
Publisher
ieee
Conference_Titel
American Control Conference, 1988
Conference_Location
Atlanta, Ga, USA
Type
conf
Filename
4789907
Link To Document