An integrated batch-to-batch iterative learning control and within batch control strategy for batch processes

An integrated batch-to-batch iterative learning control (ILC) and within batch on-line shrinking horizon model predictive control (SHMPC) strategy for the tracking control of product qualities in batch processes is proposed. ILC is used for batch-to-batch control based on a batch-wise linear time-varying (LTV) perturbation model and the convergence of batch-wise tracking error under ILC is guaranteed. On-line SHMPC within a batch can reduce the effects of disturbances immediately and improve the performance of the current batch run. The on-line model prediction can be also obtained based on the batch-wise LTV model. The integrated control strategy can complement both methods to obtain good performance of tracking control. The proposed strategy is illustrated on a simulated batch polymerization process.

[1]  Jay H. Lee,et al.  A Technique for Integrated Quality Control, Profile Control, and Constraint Handling for Batch Processes , 2000 .

[2]  Jay H. Lee,et al.  Integrated run-to-run and on-line model-based control of particle size distribution for a semi-batch precipitation reactor , 2002 .

[3]  Babatunde A. Ogunnaike,et al.  Recursive data-based prediction and control of batch product quality , 1998 .

[4]  Lawrence B. Evans,et al.  A coordinate‐transformation method for the numerical solution of nonlinear minimum‐time control problems , 1975 .

[5]  E. Rogers,et al.  Predictive optimal iterative learning control , 1998 .

[6]  Jie Zhang,et al.  Product Quality Trajectory Tracking in Batch Processes Using Iterative Learning Control Based on Time-Varying Perturbation Models , 2003 .

[7]  Jay H. Lee,et al.  Model-based iterative learning control with a quadratic criterion for time-varying linear systems , 2000, Autom..

[8]  Dominique Bonvin,et al.  Dynamic optimization of batch processes: II. Role of measurements in handling uncertainty , 2003, Comput. Chem. Eng..

[9]  Jay H. Lee,et al.  Iterative learning control-based batch process control technique for integrated control of end product properties and transient profiles of process variables , 2003 .

[10]  J. Macgregor,et al.  Within-Batch and Batch-to-Batch Inferential-Adaptive Control of Semibatch Reactors: A Partial Least Squares Approach , 2003 .

[11]  Francis J. Doyle,et al.  Hybrid model-based approach to batch-to-batch control of particle size distribution in emulsion polymerization , 2003, Comput. Chem. Eng..

[12]  Evanghelos Zafiriou,et al.  A methodology for on-line setpoint modification for batch reactor control in the presence of modeling error , 1999 .