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A NOVEL DAMPING CONTROLLER FOR INTER-AREA OSCILLATION BY MEANS OF DFIG-BASED WIND FARM

It is widely accepted that inter-area oscillations maybe deteriorate the power system condition. These oscillations are due to the dynamics of inter-area power transfer in a large interconnected power network, which can severely limit the system performance. To provide a safe operation for power system stability, damping of these oscillations have become one of the main problems. This paper presents study of a DFIG to enhance the damping of an inter-area oscillation. In order to clarify the DFIG capability in mitigating inter-area oscillations, time domain simulations were carried out by MATLAB/Simulink. Simulation results reveal that the designed supplementary controller is efficient enough in damping power oscillations without any adverse interaction in other power system parameters.