Title :
Decentralized control via disturbance attenuation and eigenstructure assignment
Author_Institution :
Dept. of Electr. Eng., K. N. Toosi Univ. of Technol., Tehran
fDate :
6/1/2006 12:00:00 AM
Abstract :
In this brief, a simple approach is proposed for decentralized control of linear large-scale systems. Sufficient conditions for diagonal dominance of closed-loop large-scale systems are derived. Based on these conditions, the interactions between the subsystems can be considered as external disturbances for each isolated subsystem. Then, a previously proposed approach is used to attenuate disturbances via dynamic output compensators based on complete parametric eigenstructure assignment. Through attenuation of the disturbances, the closed-loop poles of the overall system are assigned in the desirable region, by assigning the eigenstructure of each isolated subsystem appropriately. An example is given to show the effectiveness of the proposed method
Keywords :
closed loop systems; decentralised control; eigenvalues and eigenfunctions; poles and zeros; closed-loop poles; closed-loop systems; decentralized control; disturbance attenuation; dynamic output compensators; linear large-scale systems; parametric eigenstructure assignment; Attenuation; Control systems; Distributed control; Equations; Isolation technology; Large-scale systems; Open loop systems; Output feedback; State-space methods; Sufficient conditions; Decentralized control; diagonal dominance; disturbance attenuation; eigenstructure assignment;
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2006.873526
