Decentralized Control of Large Scale Systems via Disturbance Attenuation and Eigenstructure Assignment
Abstract
In this paper 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 them, interactions between subsystems can be considered as external disturbances for each isolated subsystem. Then a previously proposed approach is used for disturbance rejection via dynamical output compensators based on complete parametric eigenstructure assignment. By attenuating the disturbances, closed-loop poles of the overall system are assigned in the desirable region, by assigning eigenstructure of each isolated subsystem appropriately. An example is given to show the effectiveness of the proposed method.
