Optimizing PV system performance considering the impacts of non-uniform irradiance and partial shading

Abstract

As the photovoltaic (PV) power generation is becoming increasingly attractive due to the availability of resources and environmental benefits, it is significantly important to control and optimize the output power to ensure stability and security of power system. In this paper performance analysis of PV systems at various Insolations, Temperature, Partial shading were examined and their relationship with output power has been investigated in MATLAB/Simulink environment, whereas the test for Tilt angle was carried out using PVSYST software. Further the simulated results were optimized using Fuzzy Logic Toolbox of MATLAB and it was concluded that optimum output power lies in the medium range, whereas current and voltage in low range. The simulated model corresponds to the practical 2 KW panel installed and MPP is tracked using MB technology incorporating pyranometer. Also the optimum tilt angle for panel is investigated and found that it concurs with the latitude of installed panel location.