JIC_V2_N2_RP5 Ankireddy Narendra M. Sai Veerraju Journal on Instrumentation & Control Engineering 2321 – 1148 2 2 31 38 Partial Shading, Photovoltaic (PV) System, Boost-Converter, Fuzzy Logic Controller (FLC), Maximum Power Point Tracker(MPPT) Under partial shading conditions, multiple peaks are observed in the power-voltage (P-V) characteristics curve of a photovoltaic (PV) array, and conventional maximum power point tracking (MPPT) algorithm may fail to track the global maximum power point (GMPP). In this paper a fuzzy-logic controller for global maximum power point tracking (GMPPT) is proposed to increase the performance during partial shading condition. A mathematical model of the PV system under partial shading conditions is derived. The proposed fuzzy logic based controller is implemented in MATLAB- SIMULINK. February - April 2014 Copyright © 2014 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=2956