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Grid codes require wind farm to ride through disturbances such as faults and support the grid during such events. Doubly fed induction generator (DFIG) based wind farm with conventional design has limited capability to ride through severe asymmetrical faults due to low capacity of the rotor-side-converter (RSC). DFIG wind turbine with series grid-side converter (SGSC) can help to extend the operation...
In this paper, the low-voltage ride-through (LVRT) capability of the doubly fed induction generator (DFIG)-based wind energy conversion system in the asymmetrical grid fault situation is analyzed, and the control scheme for the system is proposed to follow the requirements defined by the grid codes. As analyzed in the paper, the control efforts of the negative-sequence current are much higher than...
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