THE PHOTOVOLTAIC SYSTEM CONNECTED WITH THE GRID FOR A RESIDENTIAL BUILDING IN BAGHDAD CITY

Abstract

contribution of solar photovoltaic (PV) energy to the electrical power sector is rapidly rising. Photovoltaic generators (PVGs) account for 47% of small network renewable energy sources (RESs). This paper focuses on a strategy to control the photovoltaic power systems connected to the grid for a residential building in the city of Baghdad, based on the solar radiation which is taken from average NASA data to make a scientifically reliable and significant contribution to the sustainable energy supply and to further improve the performance and stability of the power system, a comprehensive technique is being carried out, This investigation includes an examination of various control techniques, such as maximum power point tracking (MPPT) for grid-connected single-phase photovoltaic inverters. This research aims to develop efficient and effective control strategies for power flow management in grid-connected photovoltaic systems, to reduce energy consumption. By advancing our understanding of power flow management techniques, we can help to accelerate the transition to a more sustainable and resilient energy future. Phase locked loop (PLL) circuit is implemented to synchronize with the domestic 11 kV/380 V, 250 kVA transformer. The model in this work includes the current and voltage regulator and smart meters. The simulation results demonstrate that the proposed control systems can regulate the energy flow and guarantee the efficient transmission of maximum power to the grid. The perturb and observe (P&O) and Incremental Conductance Algorithm (IC) are used to estimate the Maximum Power Point Tracking (MPPT) of the Solar Panel. The initial cost of the PV used, according to the prevailing prices in Baghdad at the present time, is about 3000 dollars, The results indicate that the PV system that is connected to the grid can substantially reduce the monthly energy consumption and the monthly costs to about 12% and 6% respectively.