Title :
Variable structure control of discretized continuous-time systems
Author :
Corradini, M. Letizia ; Orlando, Giuseppe
Author_Institution :
Dipt. di Elettronica e Autom., Ancona Univ., Italy
fDate :
9/1/1998 12:00:00 AM
Abstract :
A discrete-time variable structure control technique is presented for uncertain continuous-time systems. The design algorithm makes use of the concept of time-delay control in order to estimate the effects of the system perturbations inside the switching region. The controller performances have been evaluated by simulation using a benchmark problem proposed in literature. A satisfactory behavior is obtained also in the presence of remarkable uncertainties, showing noticeable robustness with respect to parameter variations and external disturbances. Moreover, the time-response characteristics can be shaped by the designer, properly tuning the control algorithm parameters
Keywords :
continuous time systems; control system synthesis; delays; discrete time systems; robust control; tuning; uncertain systems; variable structure systems; design algorithm; discrete-time variable structure control technique; robustness; switching region; system perturbations; time-delay control; time-response characteristics; uncertain continuous-time systems; Automatic control; Control systems; Costs; Feedback control; H infinity control; Large-scale systems; Linear systems; Regulators; Time varying systems; Uncertain systems;
Journal_Title :
Automatic Control, IEEE Transactions on
