YE Lingjian, LI Yingdao, SONG Zhihuan. New approach for constructing controlled variables for chemical processes[J]. CIESC Journal, 2011, (8): 2221-2226.
YE Lingjian, LI Yingdao, SONG Zhihuan. New approach for constructing controlled variables for chemical processes[J]. CIESC Journal, 2011, (8): 2221-2226.DOI:
This paper presents a new approach to construct controlled variables(CVs)for chemical processes.The necessary conditions of optimality(NCOs)are selected as CVs
thus the process is maintained at the optimum operation point under the actions of feedback controllers.However
some NCOs are online immeasurable
so the nonlinear function relationships between measured variables and unmeasured NCOs are found via neural network
and select the functions as CVs.An exothermic reactor example illustrates that the proposed method is able to achieve approximate optimal control.