An Application of PSO to Power Management in Photovoltaic Microgrids

Abstract

Microgrids and distributed generation (DG) are becoming research priorities due to renewable energy's potential benefits. A microgrid usually has renewable microsources near the load Center. A microgrid needs a Voltage-Frequency control and Power management plan to govern each DG's real and reactive power. The load-sharing implications of adding renewable energy to the distribution system are examined in this study. GA-based MPPT for standalone photovoltaic (PV) array coupled to BESS is presented in this study. Maximum power point tracking (MPPT) Solar irradiation and temperature affect PV production. Due to the technology, PV output fluctuates, and nonlinear demand makes matters worse. PSO-based MPPT for PV generating works well for local optimization. DC/DC converters and boost converters were used to achieve the required rated voltage. A PI controller maintains DC-link voltage near its reference value regardless of external conditions.