Impactos da Alta Integração de Geradores Distribuídos nos Níveis de Energia Incidente de Alimentadores de Distribuição
Keywords: arc flash, incident energy, distributed generation, photovoltaic system
AbstractThe generation of electricity from sources close to the consumer has grown enormously due, among other factors, to the global concern with reducing the emission of pollutants and the economic benefits for the user. Despite the advantages, the insertion of another sources in distribution networks can cause changes in feeder parameters. Incident energy is one of the most relevant risks associated with an electrical arc in an electrical installation and is directly linked to its short-circuit current levels. This study proposes to study the behavior of incident energy levels of a radial distribution feeder for different scenarios of integrated photovoltaic distributed generation. OpenDSS simulation software was used, as well as incident energy calculation methods accepted by NPFA-70E. As a result, it was observed the maintenance of the energy incident values and the original arc flash boundary when there is high integration of distributed generation, while the reduction of energy incidence and the arc flash boundary was observed when there is less integration of distributed generation.