Title :
Robust lead-lag compensation for a family of uncertain linear systems
Author :
Ahmad, Samir ; Keel, L.H.
Author_Institution :
Center for Excellence in Inf. Syst., Tennessee State Univ., Nashville, TN, USA
Abstract :
The authors describe a new control design technique for interval systems whose transfer function coefficients are described by some prescribed intervals. The objective of design is to obtain a lead-lag compensator for the given interval system so that the entire family of systems meets given design requirements. The design method is based on new frequency domain tools for such uncertain systems. An algorithm to construct Bode magnitude and phase envelopes for an interval system is presented. Using these frequency domain envelopes, examples for designing robust lead-lag compensators for interval systems are included
Keywords :
compensation; control system synthesis; feedback; frequency-domain synthesis; linear systems; transfer functions; Bode magnitude envelopes; Bode phase envelopes; control design technique; frequency domain tools; interval systems; lead-lag compensation; robust compensators; transfer function coefficients; uncertain linear systems; Closed loop systems; Control design; Design methodology; Frequency domain analysis; Information systems; Linear systems; Polynomials; Robustness; Transfer functions; Uncertain systems;
Conference_Titel :
Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0593-0
DOI :
10.1109/ISCAS.1992.230659
