Page 262 - Distributed model predictive control for plant-wide systems
P. 262
236 Distributed Model Predictive Control for Plant-Wide Systems
10.7 Conclusions
In this chapter, a stabilizing distributed implementation of MPC is developed for dynami-
cally coupled systems subject to decoupled input constraints. Each subsystem-based MPC
considers not only its own performance but also those of the subsystems in its downstream
region to improve the global performance of the whole system. If an initially feasible solution
could be found, the subsequent feasibility of the algorithm is guaranteed at every update,
and the resulting closed-loop system is asymptotically stable. Moreover, the proposed NDPC
provides a unified framework for other cost function coordinating strategies. Under this
framework, the DMPC design simply involves a redefinition of the impacted region in each
subsystem-based MPC.
