Análise comparativa entre as técnicas de geração de referência de corrente SCR e SCS implementadas em inversores multifuncionais

Abstract

This article aims to present a performance analysis regarding the quality of electrical energy at the point of common coupling (PAC) of three-phase inverters operating in a multifunctional way. The aim is to analyze two different current reference determination strategies: the sinusoidal current synthesis (SCS), which imposes a sinusoidal current on the network; and resistive load synthesis (SCR), which imposes a current on the network with a waveform equal to the PAC voltage. It was observed that the SCS produces lower levels of current and voltage total harmonic distortion in voltage unbalance and load imbalance scenarios, maintaining a high power factor, although not unity, in most scenarios. On the other hand, the SCR stands out by damping resonances, keeping the power factor close to unity.