Assistant Professor/Department of EEE

Abstract — DC Microgrid is an effective solution to integrate renewable energy sources with conventional utility grid, especially for photovoltaic generation. A DC Microgrid configuration based on modular photovoltaic generation system, wind generation system and energy storage devices, which features good redundancy and high efficiency, is investigated in the paper. In order to optimize energy utilization, a power management scheme for DC Microgrid is proposed, which is based on Priority level. The DC bus voltage is set as an reference voltage which employs as an control methods of PV converters, battery, wind turbine. An Suitable MPPT technique is employs for each source in order to get maximum power in all varying conditions. These control methods maintain constant power balance of DC Microgrid under extreme conditions. Index terms- DC Microgrid, Photovoltaic power systems, power conversions, Wind power generations, Energy Storage System. I