Title :
Robust implementation of a variable structure control scheme
Author :
Diong, B.M. ; Medanic, J.V.
Author_Institution :
Illinois Univ., Urbana, IL, USA
Abstract :
The simplex method of designing sliding motion in variable structure systems is analyzed. It is shown that a linear state observer can be used to recover asymptotically the properties of the system designed assuming the state was available for feedback. Since the presence of disturbances can lead to poor performance of the closed-loop system, a method of attenuating the effect of these disturbances, in the H∞-norm sense, is then considered for plants that are known exactly and for plants with structured uncertainty. Two examples are presented to illustrate the results: disturbance rejection, and robust stabilization and disturbance rejection
Keywords :
control system synthesis; stability; variable structure systems; H∞-norm; closed-loop system; control design; disturbance attenuation; disturbance rejection; linear state observer; robust stabilization; simplex method; sliding motion; structured uncertainty; variable structure control scheme; Control systems; Design methodology; Motion analysis; Motion control; Robust control; Sliding mode control; State feedback; Switches; Variable structure systems; Vectors;
Conference_Titel :
Decision and Control, 1990., Proceedings of the 29th IEEE Conference on
Conference_Location :
Honolulu, HI
DOI :
10.1109/CDC.1990.203445
