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Doubly Fed Induction Generators (DFIG), represent one the of the most employed technologies, for wind conversion systems. Due to the intermittent nature of wind, the conventional control used by these generators has the objective to operate at a point that ensures maximum power extraction of the wind turbine. However, using only this control philosophy, these generators do not participate in frequency...
This paper focuses on mitigating the impact of reduced inertia of the power system due to high penetration of wind turbines. The study renews the understanding of phase-locked loop (PLL) and control system of wind turbine generator (WTG). A novel method to provide inertial support and synchronizing torque inherently is proposed by reducing the response speed of PLL without any supplementary control...
This work investigates the impact of increased penetration of doubly fed induction generators (DFIGs) on electromechanical modes of oscillations of a large interconnected power system. The work proposes a control mechanism aimed at designing the power system stabilizer (PSS) for a DFIG similar to the PSS of synchronous machines. The wind generator power output is taken as input to the PSS. The active...
The targeted and current development of wind energy in various countries around the world reveals that wind power is the fastest growing power generation technology. Among the several wind generation technologies, variable speed wind turbines utilizing doubly fed induction generators (DFIGs) are gaining momentum in the power industry. With the increase in penetration of these wind turbines, the power...
The improved efficiency and controllability inherent with the doubly fed induction generators (DFIGs) is bringing this technology to the forefront of power industry. However, the dynamic behavior of these machines is different from those of synchronous machines. Apparently, the large penetration of these machines entails a change in dynamics and operational characteristics of the system as a whole...
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