FUZZY ESTIMATOR FOR PLASMID-BEARING MICROORGANISM

Fuzzy estimator is developed for determining the concentration of plas mid-bearing microorganism (x(+)) in a continuous bioreactor. Membershi p functions, fuzzy ranges for the inputs and outputs are defined. A fu zzy rule base is constructed relating the inputs to the output based o n operators experience. A defuzzification method is selected and the n on-fuzzy value of x(+) is obtained. The results are compared with the actual values of x(+) which are obtained by numerically solving the mo del equations of the system. The estimator is also tested for the othe r operating conditions. The estimator performs well for other operatin g conditions also.