MPPT techniques for PV systems

Abstract

This paper propose a detailed comparative survey of four maximum power tracking techniques: Perturb and Observe (P&O), Incremental Conductance (InC), fuzzy logic based tracking technique and a, less known, method using only the photovoltaic current measurement. The drawback of the three studied methods; P&O, InC and one sensor algorithm, is that at steady state the operating point oscillate around the maximum power point, giving rise to the waste of the output panel's available energy. Simulation results show that the proposed fuzzy logic controller (FLC) can provides faster and stable tracking maximum power as compared to the other studied methods.