Fuzzy logic control of a fed-batch fermentor with significant measurement delay

A rule based fuzzy logic controller is developed for control of product concentration in a fed-batch fermentor with a significant measurement delay. The performance of the delay compensated fuzzy logic controller is compared by simulation with that of a delay uncompensated fuzzy controller and with that of a conventional proportional and derivative (PD) controller. © 1994 Springer-Verlag.