Effective Utilization of Renewable Energy Sources with Interconnected DC Microgrid

In this paper we studied the utilization of dc micro-grid with the interconnection of main ac power supply, which is generated from renewable energy sources like sun, wind etc. Micro-grids may Play a Important Role in Future evolution of Energy Sector but the process of generation may be vary. In this paper we observe that the efficiency of dc micro-grid system improve up to 40% when we use renewable energy sources for dc application like mobile charger, laptop charger, led etc because of reduction of ac to dc and again ac which is unnecessary power conversion losses take place with exist system. The microcontroller PIC16F73 is used for the operation of micro-grid system and solar tracker so that we can able to improve the efficiency of this model.when we connected this type of system with particular load the system consumption more power during off grid of renewable generation result more pulse width modulation (PWM) wave form generate which show the loss of the system compare than renewable energy sources.