Análise de desempenho e retorno de capital aplicado em sistemas fotovoltaicos com inversor string, microinversor e inversor com otimizador de potência

Abstract

In the distributed generation market, different topologies of solar inverters have their own characteristics regarding the extraction of maximum power from the photovoltaic modules. The traditional string inverter optimizes the power tracking at the arrangement level, the microinverter optimizes the power tracking at the inverter level and the simplified inverter with power optimizers optimizes power tracking at the DC-DC converter level. Thus, the present work addresses an analysis of the performance of these three topologies of inverters present in distributed low voltage generating units in Uberlândia-MG. Through the monitoring database of the photovoltaic systems, generation histories were used, used to calculate energy productivity, performance rate, capacity factor and reference yield that allow comparing generator units in different slope, orientation, module power conditions. and installed power. The calculations obtained through the real generation data of the photovoltaic systems were compared with performance data extracted from simulations performed in the PVSyst software.