Wind energy being a renewable and environmental friendly has become important source of electrical power in recent years. As the wind power penetration increases day by day, it is required that wind turbines are connected to the grid actively to contribute in the system stability during and after grid faults. This paper focuses on a new topology, for reactive power compensation, voltage regulation and transient stability enhancement for wind turbines equipped with fixed-speed induction generators in large interconnected power systems. This study proposes an efficient control strategy to improve the low voltage ride through (LVRT) capability by using the pitch controller during successful reclosing of CBs. Besides the unsuccessful reclosing of circuit breakers, the performance of controller is also evaluated. Extensive simulations have been carried out with real wind speed data and different time durations, where the effectiveness of the proposed control scheme is verified using power system simulator PSCAD/EMTDC.
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