Abstract:This paper investigates the physical capability of double-fed induction generator (DFIG) wind turbines for inertial support of frequency response. Frequency stability is modeled using the DFIG electromechanical and generator controller dynamics, and a destabilizing effect is demonstrated in low-inertia systems. To improve response, a synchronous reference frame DFIG controller is proposed that acts by following low-frequency grid dynamics and adds a fast acting proportional plus integral (PI)-controlled freque… Show more
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