Impactos da geração distribuída fotovoltaica no sistema de distribuição de energia elétrica

Abstract

World demand for electricity has grown considerably as result of technological development, population growth, increasing in purchasing power, demand for comfort that most often depends on electricity. Therefore, there is a trend for electricity generation using renewable sources such as photovoltaics, which is becoming more common due to the falling price of solar panels and inverters as well as its simple installation and maintenance. This paper studies the effects and impacts that distributed photovoltaic generation (DG PV) may cause in electrical power distribution network, with emphasis on the aspects involving the protection of the distribution system in a condition in which the GD represents a significant portion of energy supplied to the grid. This condition may become more common in a future not so far away. Additionally, it was an aim of this paper to verify the other effects and impacts that DG PV may cause in the distribution network in some aspects such as voltage level and harmonics. For this, it was made an extensive literature review on the topic. It is also presented current technologies of photovoltaic panels and inverters, installation techniques, regulatory aspects and state of the art of distribution network protection system.