Power Management of PV-Battery-Based Low Voltage Microgrid Under Dynamic Loading Conditions

The PV power plants (PVPP) integrated with the low voltage microgrid’s (LVMG) is one of the significant non-conventional sources of energy. In this article, power management of two PVPPs which are PVPP1 and PVPP2 along with the battery storage plant (BSP) is presented, and these are integrated with the LVMG. Each PVPP consists of an incremental conductance maximum power point tracking (InC MPPT) controller in order to maximize the power extraction and minimize the power losses under wide-varying irradiance (G) and temperature (T) conditions. A voltage source converter (VSC) is used to control the charging and discharging states of the BSP, and it is used to connect the BSP with the LVMG. This work deals with the frequency and voltage regulation of the LVMG by considering the dynamic loading conditions. The proposed PVPP’s along with BSP will control power flow by load leveling to maintain the active power balance which will mitigate the current and voltage harmonics. The proposed system is designed and verified by the real-time simulations using MATLAB/Simulink software.