Abstract
Real-time process control using a new decomposition-coordination method is presented. By a proper decomposition of the global criterion : centralized, decentralized or hierarchical control structures may be designed. The obtained control law is formed of two parts : a closed loop part which guarantees a fast reaction when perturbations occur, and an open loop part which corresponds to a coordination vector computed at the upper level. Due to disturbances, the coordination parameters must be reestimated on-line, this may be done rapidly using the proposed method. The control design procedure is described and the on-line tasks of each controller are defined.
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