Performance Evaluation of a Residential Photovoltaic System in Matlab Simulink

This paper presents a Simulink model of a single-phase, 240 Vrms, 3500 W transformerless grid-connected photovoltaic (PV) system. The model integrates a Trina Solar TSM-250PA05.08 PV array, a DC link for stabilizing the output, and an H-Bridge inverter controlled by Maximum Power Point Tracking (MPPT) to optimize power extraction. The inverter synchronizes the AC output with the grid while RL filters minimize harmonic distortion. A 75 kVA transformer steps up the voltage for grid compatibility, and local loads simulate power consumption. Leakage current monitoring ensures safety, a key requirement in transformerless systems. The model allows for real-time monitoring of system performance, providing insights into the dynamic interaction between PV generation and grid connection. This work demonstrates the system's efficiency and safety, offering a practical solution for small-scale solar energy integration.