Controle e identificação do sistema de bombeamento de uma planta didática

Abstract

Pumping systems are widely applied in industry, where each process has specific characteristics, requiring pumping systems that meet these specifications. Given this wide application and diversity, the development of models and controllers for these systems have varied methodologies. In order to study a specific case of a pumping system, we developed in this work the modeling and control of the B-mesh pump-flow system of the AUTHOMATHIKA PDH1002 plant. This plant corresponds to a didactic plant, used for academic purposes and is present in the Laboratory of Petroleum Automation (LAUT) of UFRN. For the development of the model, it is necessary to observe the behavior of this system, observing its limitations and nonlinearities. Thus, it was observed that the system to be identified has nonlinearities, making its representation impossible through a single transfer function. Thus, the system was subdivided into operating points, so that the models operate within an approximately linear range, close to an specific operating point. From these models, controllers that operate within these operating regions were developed. Finally, the takagi-sugeno method was used to ensure the integration between the controllers, so that they can operate together without a sudden transition between them. Obtaining this control is essential for the development of other projects that may be undertaken at the plant, including projects involving plant identification and control.