Asnil Asnil, Refdinal Nazir, Krismadinata Krismadinata, Muhammad Nasir, Muhammad Imran Hamid
Power output fluctuations due to oscillations are persistent issue in photovoltaic systems, especially under varying irradiance. Conventional Maximum Power Point Tracking (MPPT) algorithm like incremental conductance (IncCond) often inadequately address these oscillations, degrading system efficiency. This study purposes an enhanced IncCond MPPT algorithm integrating Variable Step Size (VSS) and drift-free logic to overcome these limitations. The purposed method dynamically adjusts the tracking step based on power and voltage changes, aiming to suppress oscillation and accelerate convergence to the Maximum Power Point. Experimental validation using boost converter under real-time irradiance changes shows that the proposed algorithm effectively reduce oscillations, enhances system stability, and significantly improves tracking speed and power output compared to the conventional IncCond method. Our findings highlight the potential of the proposed approach to enhance MPPT performance in practical PV applications © Published under licence by IOP Publishing Ltd.
Department of electrical engineering, Universitas Andalas, Padang, Indonesia; Department of electrical engineering, Universitas Negeri Padang, Padang, Indonesia
