Controller design for a flyback coverter in operating interconnected to grid mode, for photovoltaic applications

This article presents the modeling of a flyback converter integrated in a two-stage photovoltaic microinverter with grid connection, and the design of the respective controllers. The idea is to obtain the dynamic modeling of the DC / DC converter in order to implement a type of control that allows...

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Bibliographic Details
Main Authors: César Leonardo Trujillo Rodriíguez, Nelson Leonardo Díaz Aldana, Johann Alexander Hernández Mora
Format: Article
Language:English
Published: Universidad de Antioquia 2013-01-01
Series:Revista Facultad de Ingeniería Universidad de Antioquia
Subjects:
Online Access:https://revistas.udea.edu.co/index.php/ingenieria/article/view/14172
Description
Summary:This article presents the modeling of a flyback converter integrated in a two-stage photovoltaic microinverter with grid connection, and the design of the respective controllers. The idea is to obtain the dynamic modeling of the DC / DC converter in order to implement a type of control that allows it to operate as a current source and in turn allows to regulate the input voltage, based on the signal resulting from the location point algorithm. maximum power. This control scheme is novel and has been documented by some authors using boost type converters. Therefore, the great contribution of this article lies in the use of this novel scheme to take advantage of the maximum energy coming from the panels, using a converter that has the characteristic of galvanically isolating the generation from the rest of the circuit. To validate the operation of the flyback under study, simulations were carried out in PSIMTM. Finally, the conclusions are presented.
ISSN:0120-6230
2422-2844