Simulation of DC Microgrid with Integration of Renewable Energy Resources

Abstract

Microgrid is a part of distribution network embedding multiple distributed generation systems with local
loads, which can be disconnected from the main power grid network under emergency conditio ns. This paper presents
the simulation and control of DC microgrid in islanded mode under various loads. DC microgrid consists of wind
turbine and solar-photovoltaic which establish constant DC bus voltage. To provide DC, AC supply should be rectified
and regulated .This process occur more losses. I instead of this rectification process a separate independent DC
microgrid can be designed to which the DC load can be connected. The DC bus voltage of DC microgrid should be
regulated to avoid current with proper control strategies. Integration of renewable energy resources with the DC bus is
presented in this paper. Simulation of DC microgrid is done in Matlab/ Simulink