Research Article

Observer-Based Control for Uncertain Nonlinear Systems Applied to Continuous Biochemical Reactors

Figure 1

(a) Sulphate concentration as a function of time under open and closed loops. (b) Dynamics of all noncontrolled variables. (c) Control input for the two set points tested. (d) Dynamics of the uncertainty observer. The controller action is observed from t = 100 h.
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