Addressing Low Frequency Circulating Current Challenges in Solar Grid-Connected Systems with Parallel Inverters

As the adoption of solar grid-connected systems continues to rise, addressing challenges associated with circulating current becomes increasingly crucial. In such systems employing parallel inverters, low-frequency circulating currents often pose significant issues, impacting system performance and reliability. This paper presents an in-depth analysis of low-frequency circulating currents in solar grid-connected systems with parallel inverters. Comprehensive simulations and analysis is done by varying system parameters like voltage, frequency, phase etc.