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PubMed · 16082790

Globally linearized control on diabatic continuous stirred tank reactor: a case study.

Amiya Kumar Jana·Amar Nath Samanta·Saibal Ganguly
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Abstract

This paper focuses on the promise of globally linearized control (GLC) structure in the realm of strongly nonlinear reactor system control. The proposed nonlinear control strategy is comprised of: (i) an input-output linearizing state feedback law (transformer), (ii) a state observer, and (iii) an external linear controller. The synthesis of discrete-time GLC controller for single-input single-output diabatic continuous stirred tank reactor (DCSTR) has been studied first, followed by the synthesis of feedforward/feedback controller for the same reactor having dead time in process as well as in disturbance. Subsequently, the multivariable GLC structure has been designed and then applied on multi-input multi-output DCSTR system. The simulation study shows high quality performance of the derived nonlinear controllers. The better-performed GLC in conjunction with reduced-order observer has been compared with the conventional proportional integral controller on the example reactor and superior performance has been achieved by the proposed GLC control scheme.

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Amiya Kumar Jana, Amar Nath Samanta, Saibal Ganguly. 2005. Globally linearized control on diabatic continuous stirred tank reactor: a case study.. https://pubmed.ncbi.nlm.nih.gov/16082790/

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