Real-time batch sequencing using arrival time control algorithm

This paper proposes a new feedback control method for batch sequencing in p rocess industries where meeting customer due-date is important. Specificall y, short-term batch sequencing for Just-In-Time is solved using an arrival time control approach. An integral controller embedded in each order adjust s the arrival time in real-time using the feedback obtained from a fast-mod e simulation of the batch processing system. The applicability of the propo sed batch sequencing method for the Penn State University Creamery is studi ed. Comparison of due-date performance with commonly used dispatching rules is presented. The proposed method has also been tested for general batch p rocessing systems and has been found to produce good, feasible schedules wi th significantly better performance than the dispatching rules in terms of due-date deviation minimization.