Seasonal Performance Evaluation of A 6 MW Photovoltaic System: A Comparative Study Using PVsyst and MATLAB Simulink Model

In an era of advancing solar energy technologies, this paper explores the seasonal performance of photovoltaic (PV) systems through a comparative analysis of PVsyst and MATLAB Simulink simulations. The methodology involves six key steps, including data collection, model setup, seasonal simulations, efficiency calculations, comparative analysis, and validation. Energy output and grid integration efficiency are examined for summer, monsoon, and winter seasons, using irradiance, temperature, and sunshine hour data from Chittagong, Bangladesh. The PVsyst model simulates a grid-connected PV system, incorporating real-world losses such as shading, temperature variations, and mismatches, while the MATLAB Simulink model operates under idealized conditions, using irradiance and temperature as inputs. Both models are run using identical input data to ensure a fair comparison across seasonal variations. The efficiency of energy transfer from the PV system to the grid is analyzed for each season, providing insights into performance under real-world and idealized conditions. The findings highlight the importance of integrating multi-model approaches to address environmental impacts and refine PV system evaluations. This research provides actionable insights for optimizing solar energy systems across varying climatic conditions, paving the way for more robust and sustainable renewable energy solutions.