A Completely Decentralized Suboptimal Control Strategy for Moderately Coupled Interconnected Systems

In this paper, a completely decentralized suboptimal control strategy for moderately coupled interconnected systems is presented. The interconnections in the system are assumed to be such that they do not destabilize the uncoupled system. The control is derived to optimize a finite horizon quadratic cost function locally. This local control is obtained in two portions; one for the subsystems and the other one for the interaction effects. The performance of the approach is also considered in an example.