Suboptimal two-degrees-of-freedom control of Nonlinear Fed-Batch Reactors with input Constraints

PABLO S. RIVADENEIRA; EDUARDO J. ADAM

Lisboa

Congreso; 11th International Chemical and Biological Engineering Conference CHEMPOR 2011; 2011

Faculdade de Ciencias eTecnologia. Universidade Nova de Lisboa

This work is about the control of a fed-batch reactor for the production of penicillin and the design of suboptimal control strategies inside the Hamiltonian two-degrees-of-freedom control framework applied to nonlinear systems. These strategies enable us to (i) generate a suboptimal control that lead to the batch process towards its desired outputs, (ii) attenuate perturbations and noises there are always present in the operation of the process and, (iii) handle constraints in the control variable u(t). The resulting laws are simple PIs that update its suboptimal parameters “on-line”.