Design of battery controller for a solar wind hybrid system

Among various types of renewable energy sources present, solar energy and wind energy are pre dominant, freely available, and ecologically responsive. The energy demand of the future can only be met with the help of renewable resources which are the only alternative because it does not get exhausted after the electricity is generated. The objective of this paper is to compare the output efficiency while using the PV with battery & wind with battery. Irradiance, temperatures are some factors which affect the output of the PV panel. Sunny days are calmer than usual & strong winds are often accompanied by clouds at night. Therefore power needs to be stored to be utilized properly during adverse conditions. Here we have separately used MATLAB modeling simulations for both PV & Wind source with battery charge. Because of the absence of Grid connectivity in rural areas, batteries play a pivotal role to maintain reliability in power supply. During sunshine PV or Wind power generation systems have to store the electrical energy in batteries to provide continuous power to the load under varying environmental conditions. The power that is generated and load power requirement are not equal. Hence there is a necessity to store this power to limit the effect of the variation of the solar power or Wind power due to the changes in the environmental conditions. The batteries can be stopped from overheating by using a Controller