CONTROLADORES PARA EL CONVERTIDOR CD-CD ELEVADOR EN SISTEMAS FOTOVOLTAICOS APLICADOS EN MICRO-REDES DE CD

Juan José Martínez Nolasco, José Alfredo Padilla Medina, Elias José Juan Rodríguez Segura

Resumen


Resumen

El deterioro del medio ambiente generado por la quema de combustibles fósiles utilizados para la generación de energía eléctrica ha provocado un aumento en el uso de fuentes generadoras de energía renovables como son los Paneles Fotovoltaicos (PFs), generadores eólicos, generadores de biogás, etc. Este tipo de fuentes generadoras de energía son las más utilizadas en las micro-redes de CD (µR-CDs). Uno de los principales retos en las µR-CDs es el Sistema de Administración y Control (SAC) encargado de definir el estado de operación de cada uno de los elementos que conforman la micro-red. En este trabajo se presenta una descripción del comportamiento de los controladores empleados en sistemas fotovoltaicos dentro de una µR-CD. Estos controladores se implementaron sobre la plataforma NI myRIO-1900 de la compañía National Instruments, y se diseñó a través del software de instrumentación virtual LabVIEW. La µR-CD fue diseñada para manejar una potencia máxima de 1 kW, alimentada por dos PFs como fuente de energía renovable. La µR-CD propuesta tiene como propósito mantener el voltaje de CD del bus dentro de un rango de 190 V ±5 % ante la conexión y desconexión de cargas y fuentes. Se presentan resultados experimentales bajo diferentes puntos de operación.

Palabra(s) Clave: Algoritmos de Control, Convertidor CD-CD, NI LabVIEW, Paneles Fotovoltaicos.

 

DRIVERS FOR THE CD-CD CONVERTER ELEVATOR IN PHOTOVOLTAIC SYSTEMS APPLIED IN MICRO-NETWORKS OF CD

 

Abstract

The deterioration of the environment generated by the burning of fossil fuels used for the generation of electric energy has led to an increase in the use of renewable energy sources such as Photovoltaic Panels (PFs), wind generators, biogas generators, etc. These types of energy sources are the most used in micro-CD networks (μR-CDs). One of the main challenges in the μR-CDs is the System of Administration and Control (SAC) in charge of defining the state of operation of each of the elements that make up the micro-network. In this work, a description of the behavior of the controllers used in photovoltaic systems within a μR-CD is presented. These controllers were implemented on NI's myRIO-1900 platform from National Instruments and were designed through LabVIEW virtual instrumentation software. The μR-CD was designed to handle a maximum power of 1 kW, powered by two PFs as a renewable energy source. The proposed μR-CD is intended to maintain the DC voltage of the bus within a range of 190 V ± 5% for connecting and disconnecting loads and sources. Experimental results are presented under different operating points.

Keywords: Control Algorithms, DC-DC Converters, NI LabVIEW, Photovoltaic Panels.


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Referencias


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