Research Article

Enzymatic Synthesis of Ampicillin: Nonlinear Modeling, Kinetics Estimation, and Adaptive Control

Figure 5

Simulation resultsβ€”adaptive control law (free-noise measurements). Panel (a) shows the time evolution of the output 𝑦 = 𝑃 2 (ampicillinconcentration) versus the reference profile 𝑦 βˆ— = 𝑃 βˆ— 2 , in the adaptive case. Panels (b), (c), and (d) present the profiles of specific reaction rates πœ‡ 1 , πœ‡ 2 , and πœ‡ 3 together with their estimates  πœ‡ 1 ,  πœ‡ 2 , and  πœ‡ 3 , respectively, estimates provided by the nonlinear observer.
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(a)
512691.fig.005b
(b)
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(c)
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(d)