Análise de desempenho de usina solar fotovoltaica utilizando simulações com dados de entrada medidos

Abstract

Grid-Connected Photovoltaic Systems (SFCRs) significantly propose the expansion of renewable energy sources in the national electricity matrix. These systems can have their energy performance selected through Figures of Merit, such as Yield (Y) and PR (Performance Ratio), as well as the Energy Performance Index (EPI). This work analyzed the performance of photovoltaic solar plants, using simulations with average input data in the installation. Sensors were installed for Global Horizontal Irradiance (GHI) and Global Horizontal Irradiance in the plane of the modules (GHIt), for a temperature environment and module temperature were used LM 35 sensors, respectively installed, one in the local plant and the other behind the photovoltaic module in the center of that. Were provided steps and scenarios, with power plant configurations and input data settings. The Pvsyst program was used to convert the inputs into simulated energy, based on the SFCR configuration. Figures of merit and the monthly EPI made it possible to visualize inverter operation problems, in the measurements, and the inverter power limitation in the analysis made in PVsyst. The simulation with the GHI and ambient temperature input data and the GHIt and module temperature, showed percentage differences of 3% of simulated generated energy between the tested ones. It has been shown that for performance analysis processes of nearby photovoltaic plants, only a horizontal irradiance sensor or in the plane and a temperature sensor is needed, installed in the module or on a support.