Innovative algorithm for true maximum detection based on individual PV panel sensor network

In this paper, an innovative MPPT algorithm is presented, which exploits actual operating parameters of each solar panel of a PV string to reach the true maximum position, even in case of local shading occurrence. Data about each solar panel, connected in series with other panels as part of a PV array, are collected by means of a distributed wireless sensor network. Simulation results demonstrate the robustness and reliability of the proposed algorithm in a wide range of temperatures and for several irradiance profiles. An extensive experimental campaign evidences the capability of the approach to accurately locate the maximum power point in a shorter time compared to traditional approaches.