Maximum Power Point Tracking of PV arrays under partial shading conditions using improved algorithm

Abstract

Numerous peaks in Power vs Voltage (P – V) curve characteristic Photovoltaic arrays occurs thanks to partial shading or blurring effects. Maximum Power Point Tracker probably not be ready to locate Global peak (GP) within Local Peaks (LP). Under the partial shading condition, it is important to develop special MPPTs, in order to follow the GP track. When MPPTs purchasable, to detect the GP blurred PV curve scanning is performed. When the array does not add MPP this type of scan takes various seconds. This thesis proposed an algorithm that help in quickly determining the transition from PV work to GP under partial shading conditions. The presence of partial shading and therefore the number of ridges is decided from the operating voltage of modules. The voltage potential at the P-V curve is additionally determined from the facility of the module.