Modeling and Simulation of Microgrid Solar Photovoltaic System with Energy Storage

This paper highlights the integrated operations of the photovoltaic system with energy storage device. The variations in the energy produced and the variations in the load, the DC link voltage does vary, which has to be tackled using an energy storage device so as to maintain the DC link voltage. The battery is used as a storage device which is connected to a bidirectional converter and switching of the bidirectional converter has to be done in such a way that it either charges or discharges the battery depending upon the load conditions. The DC bus is connected to the utility grid, the power sharing and transfer should be in such a way to maximize the efficiency. An efficient algorithm is to be used to attain maximum efficiency through an interactive inverter. The SPV generating system with MPPT and boost converter is accomplished with a storage unit, and simulations are performed and the results are analyzed.