Timed Discrete Event Control of Parallel Production Lines with Continuous Outputs

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In this contribution we present an approach to formulate and solve certain scheduling tasks for hybrid systems using timed discrete event control methods. To demonstrate our approach, we consider a cyclically operated plant with parallel reactors using common resources and a continuous output. For this class of systems, we show how to pose the control problem within a discrete event framework by modelling system components as multirate timed automata. We propose a supervisory control strategy incorporating off-line optimisation to assure safety and nonconflicting use of resources. These properties have to be achieved in the presence of a class of bounded errors/disturbances and can be verified by applying formal methods.

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