An Overview of Dc-Microgrid Architecture With Renewable Energy Resources

Abstract

-In this paper DC-microgrid architecture with Renewable Energy Resources is described. Microgrid is a part of distribution network embedding multiple distributed generation systems (mostly non-conventional renewable energy sources like wind turbine, photovoltaic panels etc.) and storage systems with local loads, which can be disconnected from the upstream network under emergency conditions or as planned. Microgrid is defined as a cluster of distributed generation sources, distributed storage devices and distributed loads that operate so as to improve the reliability and quality of the local power supply and of the power system in a controlled manner. The present power system is established on AC that provide supply to the AC power machine, but the new on-going revolution in power electronics and many smart devices are coming in the list of domestic goods, which are powered by DC. To provide DC, AC supply should be rectified and regulated which produce losses. Instead of rectification a new independent DC microgrid architecture is designed to which the DC load can be connected. In this review paper, DC microgrid architecture can be independently powered by renewable energy resources which can directl y generate DC power. This paper also presents challenges in integration of renewable energy sources and their solution of integrating renewable energy sources utilization.