Micro grids are the present trendy topic due to their role in the coordination of distributed-energy resources, decreasing transmission investments by including generation near to the load centers, and providing islanded operation during blackouts. Here, a micro grid with a mix of synchronous generators and inverter based distributed energy resources is considered. Three operating conditions have been simulated for micro grids in this paper namely inverter alone, generator alone and considering both inverter and generator. The inverter-generator interaction has been studied in detail in the present work. © International Science Press.