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Power oscillation damping capabilities of doubly fed wind generators

Edrah, Mohamed and Lo, Kwok L. and Elansari, Abdussalam and Anaya-Lara, Olimpo (2014) Power oscillation damping capabilities of doubly fed wind generators. In: Power Engineering Conference (UPEC), 2014 49th International Universities. IEEE, 1 - 6. ISBN 9781479965564

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Abstract

With the increased levels of wind power penetration into power systems, the influence of wind power on stability of power systems requires more investigation. Conventional synchronous generators are increasingly replaced by wind turbines and thus wind turbines have to contribute to power system stability. In this paper, the effects of double fed induction generator (DFIG) based wind farms and their controllers on small signal stability are investigated. Moreover, since wind turbines have to contribute to power system oscillation damping, a power oscillation damping controller within DFIG rotor side converter is developed in this study. The proposed damping control is validated on realistic Western System Coordinating Council (WSCC) power system consisting of DFIG based wind farm and synchronous generators. The simulation results show the effectiveness of the proposed power oscillation damping controller. With the proposed controller, DFIG based wind farm improves the system small signal stability dramatically by damping the system oscillations effectively.