Modeling and Implementation of a Stand-alone PV System using Boost Converter

Abstract

Now a days renewable energy sources have become a popular alternative electrical energy source, even governments are also making plans towards increasing the amount of power generation from renewable energy sources because viability and crisis of conventional energy sources will increase. In addition to this government liberalization and technical developments encourage the use of renewable energy sources. This thesis deals with a PV energy system which is an alternative for conventional source of electrical energy like other renewable energy sources viz. thermal and hydro power generation. Here power extracts from the incoming son light radiation calling solar energy. It deals with the design and hardware implementation of a simple and efficient solar photovoltaic power generation system. The photovoltaic generator exhibits nonlinear V-I characteristics and its maximum-power point varies with solar isolation. So a simple control technique is adopted here, which is cost effective has been proposed to track the operating point at which maximum power can be coerced from the PV system under continuously changing environmental conditions. Solar Photovoltaic (PV) power generation system is compromising several elements like solar cells, DC/DC converter, Maximum power point tracking circuit, battery charge controller and the load; these subsystems are designed in PROTEUS software. A software simulation model is developed in Matlab/Simulink.