PV Array Reconfiguration Under Different Partial Shading Conditions

Abstract

In this report, a complete analysis is being accomplished on solar photovoltaic (SP) modules configuration under different partial shaded conditions. The primary goal of this report is to design, study & analyse the efficacy of various photovoltaic (PV) topologies below different partial shadow scenarios. The main focus is to enhance the efficacy of PV pattern by decreasing dissimilarity losses and to choose the utmost relevant PV pattern topologies that gives the better outcomes. A complete investigation is accomplished on total applicable solar array configuration. Under different feasible shadow conditions, the performance & output characteristic of these array conformation is studied & compared. In a solar PV array there may be possibilities that some shadow may fall on some of cell or module. The PV characteristic become more complicated with various apexes or peaks under PSC. Due to partial shading the efficiency of photovoltaic system reduces by adversely affecting the irradiance perceived by photovoltaic cell. The shading in PV system may create numerous unwanted consequences. Whenever the shading happens, the energy achieved from the PV system is too less than actual output power due the mismatch losses of PV system. In this context various configuration techniques are recited i.e. series-parallel (SP), Bridge-linked(BL), Total-cross-tied(TCT), Honey-comb(HC) etc. The simulation of all proposed novel structure has been investigated on MATLAB/Simulink environment.