Title :
Almost disturbance decoupling with internal stability
Author :
Weiland, Siep ; Willems, Jan C.
Author_Institution :
Math. Inst., Groningen Univ., Netherlands
fDate :
3/1/1989 12:00:00 AM
Abstract :
The almost disturbance decoupling problem with internal stability is solved in terms of the geometric concepts of linear systems theory. The solution gives necessary and sufficient conditions for the existence of a dynamic output feedback controller such that in the closed-loop system the disturbances are quenched, say in the H/sup infinity /-sense, up to any degree of accuracy while maintaining a stable system matrix.<>
Keywords :
closed loop systems; control system analysis; feedback; linear systems; stability; almost disturbance decoupling; closed-loop system; dynamic output feedback controller; geometric concepts; internal stability; linear systems; necessary conditions; sufficient conditions; system matrix; Attenuation measurement; Control systems; Control theory; Equations; Feedback control; Instruments; Linear feedback control systems; Linear systems; Output feedback; Stability;
Journal_Title :
Automatic Control, IEEE Transactions on
