Simultaneous Scheduling and Control with Closed Loop Implementation on Parallel Units

In this work, we propose a closed loop strategy to implement simultaneous scheduling and control on chemical processes whose state variables are subject to disturbance. As presented by the previous literature, integration of scheduling and control addresses both optimal production stages and transition periods, which results in global optima of an integrated model. We apply closed loop strategy on parallel CSTRs with cyclic production and compare its performance quantitatively with open loop strategy. The results of the case study justify the effectiveness of the closed loop strategy in dealing with process disturbances.