In: International Journal of Systems Sciences, Vol. 30, No. 6, pages 591-600. 1999.
Abstract: This work is concerned with the control design of a certain class of manufacturing systems modeled by continuous time Petri nets. The considered systems are large series assembly workshops for which the final machine is a single-input single-output one. The average production frequencies of the machines are controlled according to the buffers content. Three different feedback control designs are investigated a bang-bang one, a proportional one, and a combined one. The convergence of the output buffer to a desired level is proved and the analytic expression of the marking is derailed in the case of a single machine station. The results are then applied for the control design of open manufacturing lines.
Keywords: continuous Petri nets, feedback control, manufacturing systems.