Analysis of Simulation of PV array with Partial Shading effect


Ms. Kruthi Jayaram, Assistant Professor
Department of Electrical & Electronics Engineering, BNMIT, Bangalore, India.


Solar electricity or Photovoltaics (PV) is the world’s fastest increasing energy technology. This field of electricity generation is expected to grow day by day. Even the production of PV modules in increasing at a higher rate. The electricity generation using PV can be either stand-alone or grid connected system. Grid connected systems work on higher capacities therefore; their functioning of the system needs to be accurately good enough. If there is uneven supply of sun,’s energy or if there is a fault in the PV modules the generated output will automatically change. Only solar cells cannot supply power to the field, it requires module or array to power the entire field. These modules are made up of many cells connected in series. The PV modules depend upon various factors like irradiance, temperature, configuration of the array, shading of the array etc. This paper concentrates on the effect of shading on PV modules/array. If a cell receives no sunlight due to shading, no output power will be produced. Due to shading of the PV cells multiple maximum peaks arises and that analysis is what is captured and explained in this paper using MATLAB/Simulink software. Based on the formation of the array, the maximum power output as well as the factors rating changes accordingly depending upon the location. In this paper, an illustration of partial shading concept is provided consequently.