Title of article :
An uncertainty vector adjustment for process modelling error compensation
Author/Authors :
L. C. To، نويسنده , , M. O. Tadé and M. Kraetzl، نويسنده ,
Abstract :
A new uncertainty vector adjustment (UVA) was developed to compensate for the adverse effects of
modelling errors and, thereby, to improve the robustness of two nonlinear control strategies: input output
linearization; and Su Hunt Meyer transformation. The UVA provides an appropriate adjustment to the
transformation relationships obtained from a nonlinear control strategy according to the overall effect of
modelling errors. The effectiveness of the approach was verified by introducing parametric errors into the
simulation of an evaporative stage of the liquor burning unit of the Bayer process for the production of
alumina. Significant improvements in responses were observed based on the integral of the time-weighted
absolute error performance index.
Keywords :
Robust control , simulation , Nonlinear control system , Robustness , differential geometry
Journal title :
Astroparticle Physics
