Conversor CC/CC intercalado com indutores acoplados para alimentação de um datacenter através de um sistema fotovoltaico

Abstract

The need for energy to feed datacenters has increased throughout the years, and this brings a great demand for solutions on energy efficiency. One way to reduce the use of electricity from the grid to feed a datacenter it is the installation of PV micro/mini DC grid system, because this is a type of distribution more compatible to ITC (Information Technology and Communication) electronic devices. Given the aforementioned, this paper proposes a DC/DC converter topology to be used in a photovoltaic system for feeding ITC equipments. The proposed converter topology is a high gain DC/DC boost converter, interleaved with coupled inductors and double output module, for a power of 600W, with input voltage of 24Vdc and output voltage of 311Vdc. A digital control was also designed using a PI compensator for the proposed converter. The study shows, through simulations, that the proposed topology leads to the reduction of voltage stresses on the output diodes in relation to the boost converter topology interspersed with coupled inductors. In relation to the topology of the boost converter with coupled inductors and dual output module, the proposed topology leads to a reduction on the input current of the converter and consequently the size of the inductors reduces, the voltage and current stresses on the switches reduce the ripple of the output voltage reduces, and consequently the filter elements of the converter. With this, the proposed topology reduces costs and increases the efficiency of the converter delivering the TIC load a quality energy.