LPT-2004-28 [BibTeX]
Johannes Gerhard, Martin Mönnigmann, Wolfgang Marquardt:
Robust stable nonlinear control and design of a CSTR in a large operating range
DYCOPS 7, Cambridge, USA
Abstract:
In this work an approach based on nonlinear dynamics is used for
the integrated design and controller tuning of a CSTR. The
approach enables integrated design optimization and robust tuning
of a linearizing feedback controller. The controller setting found
by the approach guarantees robust stability of the process over a
large range of set point variations even in the presence of
parameter uncertainty. The method enforces robust stability by
introducing lower bounds on the parametric distance of the
operating point to critical boundaries in the space of process and
controller parameters. For stabilization of a large range of
operations, a lower bound on the distance to a nontransversal Hopf
bifurcation has to be considered in this particular case.
Keywords:
robust stability, nonlinear control, optimization
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