An accurate partial shading detection and global maximum power point tracking technique based on image processing

This paper aims to detect the existence of partial shading conditions on PV array and estimate vicinity global maximum power point for shaded modules based solely captured image modules. Detecting is comparing average pixel intensity each module find any mismatch in incident irradiance. Estimating irradiance level camera response function with help a reference module. Furthermore, after estimating modules, we used area percentage. Detect presence position Global Maximum Power Point under was achieved simple cheap procedure yet effective at various patterns regardless environmental circumstances.