Abstract—Easy electrification of remote areas and the necessity for solving global warming problems by reducing carbon dioxide emissions in the electricity generation field has led to an increase in the interest in Micro-Grids (MGs), especially the one which includes renewable sources. This paper deals with the analysis of two interconnected micro-grids powered by PV, with one microgrid connected to the main grid. Load characteristics of both MGs are analyzed during and subsequent to different types of faults under different load conditions of the two MGs. Frequency deviations are analyzed with and without interconnection. It was observed that one MG can get power from the nearby MG if any failure occurs in the former one and vice versa. All the components and micro sources installed inside the two MGs are modeled in detail. All micro source models and controllers are built in the Matlab-Simulink environment.

Index Terms—Keywords: Photovoltaic models, Interconnected micro-grids, Frequency deviation analysis

Cite: M K Sajina and P Preetha, "ANALYSIS OF GRID CONNECTED SYSTEM WITH TWO INTERCONNECTED MICROGRIDS," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 3, No. 4, pp. 页码, October 2014.