Análisis del rendimiento de sistemas de conversión DC-DC MISO aislado y no aislado en lazo cerrado basado en controladores clásicos bajo un entorno de producción de energía renovable híbrida mediante el diseño, modelado y simulación.

Abstract

The present research aimed to analyze the performance from direct current conversion systems to direct current (DC-DC) of multi-input single-output (MISO) in closed-loop isolated and non-isolated based on classical controllers under a hybrid renewable energy production environment through design, modeling, and simulation. The research started from a review of the state of the art about these systems, product from which the design strategies proposed by the different authors were deduced; and according to this, the different study cases were raised, such as the buck converter, buck-boost converter, Flyback, and Forward converter, of these last two corresponding to the isolated architecture. The characterization was obtained from each of these cases and the sizing criteria were established under the ideal analysis methodology based on the voltage and current of the coil. However, for the analysis of non-ideal effects, modeling, and closed-loop control, the buck converter and the Flyback converter were taken as representative. Once the analysis of the converters was established, the research focused on designing and implementing the hybrid renewable energy production environment in a closed-loop in which the proposed models were going to be evaluated. Under this defined scenario, different tests were carried out where, for each of the scenarios, the control system responded in a moderately robust manner, guaranteeing a stable nominal voltage with an error of less than 1% and an efficiency greater than 85%. It was concluded that the proposed converters have high efficiency and are versatile for their closed-loop application. However. The implementation of one of the case studies is recommended, which will allow experimentally verifying or rejecting what is proposed in the research.