Abstract
Considering the ethanol fermentation is a typical product-inhibiting process, a mathematical model of the ethanol fermentation with the state feedback control is proposed in this paper. The sufficient conditions for existence of the positive period-1 solution and period-2 solution are obtained based on the theory of the impulsive semi-dynamical system and the qualitative properties of the corresponding continuous system. We prove that ethanol fermentation with impulsive state feedback control tends to an order-1 periodic solution or order-2 periodic solution if the control measures are achieved during the fermentation. Furthermore, mathematical results are justified by some numerical simulations.
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