Uma contribuição para a modelagem, construção e análise de desempenho de compensadores de tensão a reator saturado

Abstract

The search for solutions to the various problems of power quality, especially to voltage deviation from the standard values, account today, with an extensive range of products aiming above all the dynamic regulation of the supply voltage. Despite this recognition, the challenges to find alternatives technologies that take into account the use of compensators with more attractive operational and economic properties, are still motivating research worldwide. Among the devices based on the principle of consumption or supply of reactive power, in the 60 s came a product design nominated by Reactor Core Saturated Compensator- CERNS. This device is constituted by an inductive unit, comprising a magnetic core and windings with special features, connected in parallel with a capacitor unit. Although this equipment has been widely used in the past, the lack of publications on the subject resulted in a large gap in knowledge domain and dissemination of this technology. This fact contributed to a demand for dedicated efforts in recent years by national and international researchers. In the light of the attractions offered by this philosophy for voltage regulators, the subject has reawakened the interest for research and developments about the project, construction and operation of these compensators, thus aiming the technology domain. On the above, added to efforts previously made by national institutions, arises the present thesis aimed at providing a computational program to assist in the specification and basic design of saturated core reactors and means for determination of the equivalent electrical parameters needed to the model of the equipment proposed and implemented in the ATP simulator. Finally, performance studies are carried out to highlight and to validate the operational efficiency and computational model developed.