INVESTIGADORES
GARELLI Fabricio
artículos
Título:
Multi-loop two-degrees-of-freedom PI controller with adaptive set-point weighting.
Autor/es:
FABRICIO GARELLI; RICARDO J MANTZ; HERNÁN DE BATTISTA
Revista:
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART I-JOURNAL OF SYSTEMS AND CONTROL ENGINEERING
Editorial:
PROFESSIONAL ENGINEERING PUBLISHING LTD
Referencias:
Año: 2010 vol. 224 p. 1033 - 1039
ISSN:
0959-6518
Resumen:
This note describes a simple technique to adapt the set-point weighting ofmultivariable two-degree of freedom proportionalintegral (PI) controllers. This controllerstructure has been extensively used in single-input-single-output (SISO) systems to designdisturbance and set-point responses independently. In multivariable systems, the interactionamong the different loops can beminimized bymaking the set-point weighting zero. However, thecancellation of the reference direct path leads to a degradation of set-point tracking performance.The weighting adaptation proposed here aims to conserve the interaction magnitude levelcorresponding to zero weighting but improving the response of the direct control loop. Variablestructure control-related concepts may be used to analyse the methodology, since a switching lawis used in order to generate the weighting factor.
