Control of Doubly-Fed Induction Generator to Ride-Through Recurring Grid Faults

The wind turbine system (WTS) is required to ride-through recurring grid faults by the new grid codes. Under single grid faults, the fault ride-through (FRT) strategy with rotor-side crowbar is normally used for the doubly-fed induction generator (DFIG) WTS. However, under recurring faults, larger transient current and voltage may be produced, and the DFIG… CONTINUE READING