Protection of Electrical Distribution Systems by Smart Grid, Considering Solar Photovoltaic Generation
Abstract
According to resolution 482 of the Brazilian National Electric Energy Agency (ANEEL), connection of micro and mini generation directly on power distribution grids are now possible in Brazil, in both cases only from renewable sources. This resolution provides that each customer can have a photovoltaic system producing energy to complement the own consumption and can inject the excess energy in the power grid, establishing a power compensation cycle, with credits valid for some months (net metering). Massive connections of distributed micro and mini generation demands a centralized control and an intelligent management system that only will be possible with use of smart grid technologies, including telecommunications infrastructure, computing facilities, smart metering and advanced protection/automation. This paper presents an assessment of impacts on the protection in electrical power distribution systems when micro and mini generators are connected on grid, considering solar photovoltaic and smart grid concepts.
Keywords
Smart grid, Protection grid, Pv connect on grid, Solar energy, Distributed generation