Stability Analysis of Doubly-Fed Induction Generator Wind Turbine Systems Using Modal Analysis
Subject Areas : electrical and computer engineeringAhmad Jafari 1 , G. Shahgholian 2 * , M. Zamanifar 3
1 -
2 - Islamic Azad University, Najafabad Branch
3 -
Keywords: Doubly fed induction generatordistributed generatorssmall signal stabilityeigenvalue analysis,
Abstract :
In this paper, the modal analysis of a grid connected doubly-fed induction generator (DFIG) using small signal stability analysis is presented and effect of variation in system parameters such as mutual inductance, stator resistance, line reactance, shaft stiffness and wind speed on the eigenvalues, stability and damping ratio of different modes of system are studied. This analysis shows that which parameters variation can deviate the system from normal working conditions as well as which parameters variation can improve the system behavior. For evaluating the stability and different controllers design, the simulation results show the effects of parameters variations.
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