Sofware sensors design for monitoring of variables in reactors: A biological processes application

In this paper the design of state observers or software sensors for a biological process of ethanol production by S. cerevisiae is presented. Two observers (non-linear and sliding) were used for monitoring continuous fermentations. Their performances were evaluated using mathematical model for bioreactor (perfect knowledge of both model structure and parameters. The performance of the observers proposed in the present work showed a better adjustment that the classical Extended Luenberger observer.