Author/Authors :
J. Alvarez-Ramirez، نويسنده , , A. Velasco and
G. Fernandez-Anaya، نويسنده ,
Latin Abstract :
For a class of single-output processes with at least two control inputs, this note proposes a simple control design and study its
stability. To this end, the process is factorized into a stable and non-minimum-phase factor and a possible unstable minimum-phase
factor. By the addition of a (low-pass) filter of suitable dimension, one can obtain a process factorization where the minimum-phase
factor has a proper and stable inverse. Once the plant has been factorized in this form, the proposed control synthesis method is
composed of two main steps; namely, output regulation based on the non-minimum-phase factor and design of an optimizationbased
divider to compute the value corresponding to the multiple inputs. In this way, one obtains the control transfer function of
each control input in a parallel control architecture. An analysis of the control structure is provided, giving sufficient conditions for
the stability of the control loop.
