PROPUESTA DE UN SISTEMA DE CONTROL PARA UN CONVERTIDOR BIDIRECCIONAL CD-CA EMPLEADO PARA TRANSFERIR ENERGÍA ENTRE UN SISTEMA FOTOVOLTAICO Y LA RED ELÉCTRICA DE CORRIENTE ALTERNA (PROPOSAL FOR A CONTROL SYSTEM FOR AN EMPLOYED CD-CA BIDIRECTIONAL CONVERTER TO TRANSFER ENERGY BETWEEN A PHOTOVOLTAIC SYSTEM AND THE ALTERNATE CURRENT ELECTRICAL NETWORK)
Resumen
Resumen
Uno de los principales retos en las Micro-Redes de Corriente Directa (µR-CDs) es el diseño e implementación de los sistemas de control encargados de la manipulación de los convertidores electrónicos de potencia. En este trabajo se presenta una propuesta para el diseño e implementación de un sistema de control embebido capaz de manipular la transferencia de energía entre un sistema fotovoltaico y la red eléctrica principal de corriente alterna. Este sistema de control se aplica sobre el convertidor bidireccional CD-CA que forma parte de un prototipo experimental de una µR-CD conformada por un par de Arreglos Fotovoltaicos (AFs) de 500W cada uno, interconexión a la Red Eléctrica Principal (REP) de Corriente Alterna (CA) con una capacidad de 1kW y cargas de CD y CA (cargas resistivas y cargas no lineales como luminarias LED, luminarias fluorescentes y equipo de cómputo) que trabajara en corriente directa.
Palabra(s) Clave: Convertidor electrónico de potencia, corriente alterna, corriente directa, micro-red, transferencia de energía.
Abstract
A main concern in DC Micro-Grids (µR-CDs) is the design and implementation of control systems which are in charge of manipulation of power converters. In this paper, an embedded control system design and implementation is proposed in order to transfer energy from a photovoltaic system to the main grid. This control system is applied over a bidirectional DC-AC converter which is part of a µR-CD comprised by two 500 W PV arrays (AFs), a 1 kW point of common coupling (REP) with the AC main grid, as well as AC and DC loads (resistive and non-linear loads such as LED and fluorescent lamps and computer equipment) which operates in DC.
Keywords: AC, DC, power converters, transfer energy.
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