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Authors
Pico-Marco, Enric; Navarro, Jose Luis

Identifier
10.3182/20080706-5-KR-1001.01638

Index Terms
Dynamics and control; Microbial technology

Abstract
This article addresses the computation of invariant and stabilizing control laws for dual-substrate fed-batch fermentors. The design is based on two commonly used model structures. It will be shown how to derive partial state feedbacks, using only biomass and volume as measures, that keep the substrates at a desired concentration provided the model is good enough and does not change with time. In the paper an analysis of invariance and a study of global stability within the framework of partial stability is provided.

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