Abstract
This paper presents the MATLAB simulation and stability investigation of a power system in the presence of micro grid. Micro grid considered has hydro, wind and PV energy sources as its constituents. Different possible combinations of these energy sources have been presented and the system response is analysed. Fuzzy logic controller has also been incorporated in the rotor side and grid side converters of DFIG of wind power plant. The effect of micro grid on the system during grid connected and partially islanded modes is investigated through voltage, current, power and frequency. The system performance under different combinations of the micro grid constituents has been studied using ISE performance index.
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