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Integrated batch-to-batch control and within batch control of batch processes using neural network models

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1 Author(s)
Jie Zhang ; Sch. of Chem. Eng. & Adv. Mater., Newcastle Univ., Newcastle upon Tyne, UK

This work presents an integrated batch-to-batch control and within batch re-optimisation control strategy for batch processes using neural network models. To overcome the difficulties in developing detailed mechanistic models, neural network models are developed from process operation data. Due to model-plant mismatches and unknown disturbances, the optimal control policy calculated based on the neural network model may not be optimal when applied to the actual process. Utilising the repetitive nature of batch processes, neural network model based iterative learning control is used to improve the process performance from batch to batch. Batch-to-batch control can only improve the performance of the future batches. Within batch re-optimisation should be used to overcome the detrimental effect of disturbances on the current batch. The proposed technique is successfully applied to a simulated batch polymerisation process.

Published in:

Intelligent Control, 2004. Proceedings of the 2004 IEEE International Symposium on

Date of Conference:

2-4 Sept. 2004

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