Simulation of Grid Supported PV/Wind/Battery Hybrid System with Variable Load

Hybrid power systems which comprise of more than one type of energy sources especially renewable sources are becoming more feasible compared to old fashioned power systems. The growth of clean renew able generation in power sector has accelerated over the last decade due to: increasing environmental consciousness; technological progress in storage devices & wind/solar energy conversion systems; and other economic factors. Consequently, there is an extensive focus on this domain and several models have been proposed in recent years for reliable and efficient assimilation of intermittent renewable sources in the power system to reduce burden on the utility grid. This paper presents a simulation of wind/solar/battery hybrid system with utility grid acting as back-up support for supplying a variable load using simulink tool. Wind turbine generator and photovoltaic (PV) array are used as primary energy suppliers to the load. To match power and demand, switching of grid connection and battery is done by using a neuro-fuzzy controller.