Impacts of high penetration of DFIG wind turbines on rotor angle stability of power systems

Edrah, Mohamed and Anaya-Lara, Olimpo and Lo, Kwok (2015) Impacts of high penetration of DFIG wind turbines on rotor angle stability of power systems. IEEE Transactions on Sustainable Energy, 6 (3). 759 - 766. ISSN 1949-3029

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    Abstract

    With the integration of wind power into power systems continues to increase, the impact of high penetration of wind power on power system stability becomes a very important issue. This paper investigates the impact of doubly fed induction generator (DFIG) control and operation on rotor angle stability. Acontrol strategy for both the rotor-side converter (RSC) and grid-side converter (GSC) of the DFIG is proposed to mitigate DFIGs impacts on the system stability. DFIG-GSC is utilized to be controlled as static synchronous compensator (STATCOM) to provide reactive power support during grid faults. In addition, a power system stabilizer (PSS) is implemented in the reactive power control loop of DFIG-RSC. The proposed approaches are validated on a realistic Western System Coordinating Council (WSCC) power system under both small and large disturbances. The simulation results show the effectiveness and robustness of both DFIG-GSC control strategy and PSS to enhance rotor angle stability of power system.