Dimensionamento, simulação e análise econômica de um sistema fotovoltaico conectado à rede com armazenamento de energia.

Abstract

This study proposes a grid-connected photovoltaic system (GCPVS) project with an energy storage system for Children and Adolescents Hospital (CAH) in Macapá-AP. It presents the sizing of the system contemplating the lithium-ion battery bank, modeling of the photovoltaic system, as well as the simulation of the operation of the proposed system, carried out in the computational tool Simulink/Matlab 2018b, in order to measure the estimate of energy to be produced. and stored. The objective is the generation and storage of energy during the day (off-peak hours), so that it can be used by the load at peak hours, whose tariff value is higher. After the simulations carried out for the months with the highest and lowest global irradiation incident on the generating plane, as well as for the days of the year with the highest and lowest irradiation, it was verified as a result obtained, in the latter case, that the system will still need to connect to the concessionaire. during peak hours, demonstrating that there will be days when the storage system cannot be loaded satisfactorily. It is also proposed an estimated budget of the system and its financial analysis in function of the estimated energy production in simulation. The economic viability is demonstrated, with a return on investment in nine years, over the life of the GCPVS, as well as an economic sensitivity analysis based on financial parameters such as energy tariff value and watt-peak cost of the system. However, the system will fulfill its mission of reducing the cost of the CAH energy bill in a sustainable way and can be expanded (scalable)