Title :
Local stabilization of linear systems under amplitude and rate saturating actuators
Author :
Da Silva, João Manoel Gomes, Jr. ; Tarbouriech, Sophie ; Garcia, Germain
Author_Institution :
Dept. of Electr. Eng., Univ. Fed. do Rio Grande do Sul, Porto Alegre, Brazil
fDate :
5/1/2003 12:00:00 AM
Abstract :
This note addresses the problem of local stabilization of linear systems subject to control amplitude and rate saturation. Considering the actuator represented by a first-order system subject to input and state saturation, a condition for the stabilization of an a priori given set of admissible initial states is formulated from certain saturation nonlinearities representation and quadratic stability results. From this condition, an algorithm based on the iterative solution of linear matrix inequalities-based problems is proposed in order to compute the control law.
Keywords :
actuators; control nonlinearities; iterative methods; linear matrix inequalities; linear systems; stability; LMI; admissible initial states; amplitude saturating actuators; first-order system; iterative solution; linear matrix inequalities-based problems; linear systems; local stabilization; quadratic stability; rate saturating actuators; saturation nonlinearities; saturation nonlinearity representation; Automatic control; Control systems; Hydraulic actuators; Iterative algorithms; Limit-cycles; Linear matrix inequalities; Linear systems; Output feedback; Servomechanisms; Stability;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.2003.811265