Numerical Simulation and Design Methodology for Battery Integrated Stand Alone Solar Photovoltaic System

Abstract

Renewable energy sources as the name suggests, are the sources that can be renewed with the time and are available to us in unlimited quantity and hence are inexhaustible resources. Among the known renewable energy sources, the most frequently used are water, biomass, solar, geothermal and wind. Owing to the continuous depletion of fossil fuels and oil reserves, renewable energy sources are in great demand. Moreover, these non-renewable resources pose a great threat to ecosystem by increasing the levels of greenhouse gases carbon dioxide. Among all the known renewable energy sources, solar energy has been known as the finest green energy resource with a great potential and hence it can serve as the best replacement of conventional resources. In the past decade, much attention has been given to the solar energy worldwide. Being the most proverbial field, many researches are being done on it to extract the maximum energy. The demand of solar energy is increasing exponentially because it has many advantages including absence of fuel cost, pollution free, less maintenance etc.

In this research work carried out we have addressed mathematical simulation model of stand alone system integrated with battery bank and converters and inverters. The system has been simulated with maximum power point system based on incremental conductance method for tracking of maximum power point. The system is also integrated with battery as well as DC link for analysis and design consideration. The research has been extended to understand the sizing problem of stand alone system using battery bank and PV panels.