Advanced control strategy of DFIG during symmetrical grid fault

<p>This article proposes a novel scheme to improve the doubly-fed induction generator (DFIG) behavior during grid fault. The DFIG’s are sensitives voltage variations when abrupt of wind velocity arrive. For enhancing DFIG behavior, protecting converters, and smoothing fluctuations power output under sag voltage; hybrid energy storage system its controller proposed. main advantages our approach faster response suppressing overvoltage on DC bus globally less stress in system. control structure decreases tiredness battery restores rapidly, operating time increases. results obtained by simulations MATLAB validate benefits suggested control.</p>