Enhancing Grid-Connected PV Efficiency with Beta MPPT under various weather conditions

Abstract

Photovoltaic (PV) systems are progressively integrated into the electricity grid, allowing households to generate renewable energy and contribute excess power to the network. A key challenge in optimizing these systems lies in maximizing the output voltage and implementing effective Maximum Power Point Tracking (MPPT) techniques to ensure solar panels operate at their highest efficiency under varying sunlight conditions. This paper focuses on evaluating the performance of two MPPT methods: Perturb and Observe (P&O) and the Beta method. Both techniques adjust the duty cycle of a DC/DC converter to maintain optimal power extraction for the Grid. Through a comprehensive analysis of current, voltage, and power outputs, we assess which method best meets criteria such as tracking accuracy, dynamic performance, and stability. The results indicate that the Beta MPPT method excels over the P&O approach, particularly in terms of quick response and reduced oscillations, even during rapid changes in irradiation