DocumentCode :
2471361
Title :
Global learning controls for uncertain relative degree one linear systems: a comparative study
Author :
Cugliari, M. ; Marino, R. ; Tomei, P. ; Verrelli, C.M.
Author_Institution :
Electron. Eng. Dept., Tor Vergata Univ., Rome, Italy
fYear :
2009
fDate :
10-12 June 2009
Firstpage :
1628
Lastpage :
1633
Abstract :
The output tracking problem of periodic reference signals (of known period) for single-input single-output observable minimum phase uncertain linear time-invariant systems with unitary relative degree is considered. A continuous global iterative learning control via output error feedback is designed which guarantees closed loop boundedness and asymptotic output tracking, thus improving the L2 convergence achieved. Its closed loop performances are then compared with those obtained by using the adaptive learning control and the adaptive regulator: in particular the effects of finite memory implementation, measurement noise and uncertainties in the period of the output reference signal are explicitly taken into account in the simulations.
Keywords :
adaptive control; closed loop systems; control system synthesis; convergence; feedback; iterative methods; learning systems; linear systems; time-varying systems; uncertain systems; adaptive learning control; asymptotic output tracking; closed loop performances; continuous global iterative learning control; convergence; finite memory implementation; measurement noise; minimum phase uncertain linear time-invariant systems; output error feedback; periodic reference signals; single-input single-output observability; unitary relative degree; Adaptive control; Control systems; Error correction; Feedback loop; Linear systems; Output feedback; Performance evaluation; Programmable control; Regulators; Tracking loops;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
American Control Conference, 2009. ACC '09.
Conference_Location :
St. Louis, MO
ISSN :
0743-1619
Print_ISBN :
978-1-4244-4523-3
Electronic_ISBN :
0743-1619
Type :
conf
DOI :
10.1109/ACC.2009.5160403
Filename :
5160403
Link To Document :
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