A New Control Strategy to Improve the LVRT of DFIG in Wind Farm Based on STATCOM under Grid-side one-phase-ground Faults

This paper addresses the limitations of the traditional control strategy for STATCOM, which tends to improve the LVRT of Wind Fram under grid-side single-phase-to-ground faults. To mitigate the measurement errors induced by voltage asymmetry, an improved strategy is proposed. By introducing a phase offset within the rotating reference frame, a new current detection method compensates the voltage effectively for STATCOM. Simulation results confirm the proposed strategy.