A generalised approach for modelling of PV module and analysis of PV array configurations under partial shading conditions for maximum power point tracking

Abstract

Nowadays, due to the depletion of fossil fuels, the entire world is facing the shortage of newlineenergy and there is a rising transfer from non-renewable energy sources (NRES) to newlinerenewable energy sources (RES) for power generation. Solar energy (Photovoltaics) has newlinecome out as one of the most promising RES across the world owing to its abundance. newlineBut, the utilisation of photovoltaic (PV) energy is expensive in comparison to the newlineelectrical energy from other conventional sources. Also, the output characteristics of a newlinePV system are non-linear and highly dependent on solar irradiance and temperature. newlineTherefore, to ensure the efficient utilisation of the available solar energy by a PV power newlinesystem, it is significant to analyse the PV system. A lot of research opportunities exist newlinein the analysis of PV systems. newlineThe research illustrated in this thesis includes development of two novel parameter newlineevaluation techniques, different PV array configurations and an efficient maximum newlinepower point tracking technique (MPPT) algorithm. Two parameter evaluation newlinetechniques have been proposed namely a partially environmental condition dependent newlinemethod and a fairly environmental condition dependent method. New flowcharts and a newlinenew idea quotLevel of Improvementquot have been proposed for evaluating unknown newlineparameters of the single-diode model of PV module at any environmental condition, newlinetaking the manufacturer given data at standard test conditions as inputs. A generalised newlinePV module model is built with MATLAB/Simulink by utilising the values of newlineparameters of the single-diode model of PV module obtained from program results of newlinethe proposed techniques. The fairly environmental condition dependent method proves newlineto be more accurate as compared to the partially environmental condition dependent newlinemethod for evaluation of parameters, modelling and simulation of photovoltaic newlinemodules.