Controlling production dynamics – managing uncertainties with automatic production control

A dynamic and continuous production model for the planning level, based on methods of control theory, will be presented in this paper. For the control task, a decentral backlog controller has been developed. The controller adjusts the capacity of the individual work system in order to eliminate the backlog as soon as possible. A central WIP-controller secures that only the amount of work that can be handled by means of flexible capacities will be released to the job-shop. The objective is to develop a feedback control for production planning and control with defined control and reference variables based on the logistical objectives.