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Geometric control analysis of large-scale systems: Application to process control network

An application of geometric nonlinear control theory to plantwide systems is presented. To relax the structural conditions required in most existing decentralized geometric approaches which are not commonly satisfied in chemical process networks, a distributed control structure is considered. The main result of the paper is a set of conditions that determine the amount of distribution required for interconnection decoupling. The result is demonstrated with a benchmark example of a reactor-separator network.