Article
Identificación de procesos: uso de algoritmos en Matlab para encontrar un modelo por identificación para un proceso de medición de pH
Fecha
2011-12Autor
Parra Lucero, Pablo
Institución
Resumen
This raises the need to model the dynamic behavior
of a pH measurement system, for which it
could be considered for obtaining the physical parameters
mathematical formula or by identifying
a mathematical model.
It starts with data obtained experimentally from a
simulator, they are generated according to a PRBS
signal, the information input and output of the simulator
will be used for model identification.
The experimental model identification is performed
using the three parametric models providing
Matlab functions, these are: OE, ARMAX and
ARX.
Finally, cross-validation is performed for each of
the models and comparative analysis of the results
for their selection of the mathematical model that
describes the dynamic behavior of the system.
This paper does not reach the controller calculation
process; simply remains in the collection and
model validation.