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Reports Year : 2004

Robust control for an uncertain chemostat model

Gonzalo Robledo
  • Function : Author


In this paper we consider a control problem for an uncertain chemostat model with a general monotone growth function. This uncertainty affects the model (growth function) as well as the outputs (measurements of substrate). Despite this lack of information, an upper bound and a lower bound for those uncertainties are assumed to be known a priori. We are able to build a family of feedback control laws on the dilution rate, giving a guaranteed estimation on the unmeasured variable (biomass), and stabilizing asymptotically the two variables in a rectangular set, around a reference value of the substrate. This could be implemented in a real chemostat, keeping a high level of substrate, avoiding the washout of the bioreactor.
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Dates and versions

inria-00070705 , version 1 (19-05-2006)


  • HAL Id : inria-00070705 , version 1


Jean-Luc Gouzé, Gonzalo Robledo. Robust control for an uncertain chemostat model. RR-5295, INRIA. 2004, pp.16. ⟨inria-00070705⟩
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