Multivariable Control Strategy for a refrigeration plant

Abstract

In this paper a multivariable control system for the heat exchanger of a real plant is proposed; using
pi direct synthesis controllers and simplified type decouplers. In addition, the measured, controlled
and manipulated variables of the units that constitute this plant and that interact are analyzed, so as
not to cause conflicts between them. The cascade control configuration is chosen for the control of
air temperature, which is the main function of the study plant. The results obtained at simulation
scale demonstrated the effectiveness of the proposal.