A Simple Algorithm for High-Accuracy Maximum Power Point Calculation of Photovoltaic Systems

We present a simple algorithm to perform fast and high-accuracy calculations of the maximum power point of illuminated photovoltaic panels, based on fixed-point iteration. This simple and rigorous procedure presents a fast convergence for a large range of initial values. Our algorithm is illustrated by applying it to measurements of photovoltaic modules with seven different technologies. The possibility of using the first iterations as a practical approximate solution is also considered.