Title :
New conditions for robust stability of linear systems subject to a bounded rate parameter
Author :
Amato, Flora ; Iervolino, R.
Author_Institution :
Dipt. di Inf. e Sistemistica, Univ. degli Studi di Napoli Federico II, Italy
Abstract :
In this paper we consider a closed loop system composed of a SISO asymptotically stable linear plant and an uncertain time-varying parameter. Referring to this setup, Amato and Celentano (1997) introduced the stability margin defined as the maximum allowable rate of variation of the parameter which still guarantees stability of the closed loop system. This paper is devoted to show how the proposed technique can be used into a synthesis context to improve the value of the open loop stability margin. An example illustrates the benefits of the method
Keywords :
asymptotic stability; closed loop systems; control system synthesis; linear systems; robust control; stability criteria; time-varying systems; uncertain systems; SISO asymptotically stable linear plant; bounded rate parameter; closed loop system; control synthesis; linear systems; open loop stability margin; robust stability; uncertain time-varying parameter; Closed loop systems; Equations; Feedback loop; Gain measurement; Linear systems; Lyapunov method; Robust stability; State feedback; State-space methods; Time varying systems;
Conference_Titel :
Decision and Control, 1999. Proceedings of the 38th IEEE Conference on
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5250-5
DOI :
10.1109/CDC.1999.833341
