Abstract
This paper presents a new early-lumping approach of feedforward control design for setpoint change scenarios applied to a tubular reactor modeled by a non-linear parabolic diffusion-convection-reaction equation. The approach is based on Galerkin's method to obtain a finite-dimensional model and on a recently developed approach to feedforward control design for nonlinear systems under input constraints. The considered finite-time transition between equilibrium points is treated as a two-point boundary value problem. Simulation results for different sets of model parameters illustrate the applicability of the approach.
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