Wind power facility and method

A DFIG wind power facility configured to operate during grid faults, the DFIG wind power facility comprising:

• a Doubly-Fed Induction Generator (DFIG) comprising a rotor and a stator, wherein the stator comprises at least one three-phase winding;
• a control system configured to manage an operation of the DFIG wind power facility;
• an electric converter comprising a Machine Side Converter (MSC), a Grid Side Converter (GSC) and a DC link connected therebetween;
• a short-circuit controlled switch configured to selectively short-circuit the stator thereby allowing a current to flow through the stator upon decoupling the grid from the stator;
• and
• a Stator Neutral Brake Chopper (SNBC) coupled to the stator, wherein the SNBC comprises a three-phase rectifier comprising three inputs, wherein each input corresponds to a phase;
• and
• an impedance and an active high-frequency switch configured to vary an average value of the impedance by adjusting a duty cycle;
• wherein each of the three inputs of the rectifier is connected to a phase of the at least one three-phase winding of the stator;
• wherein the phases of the at least one stator three-phase winding are connected to the grid at one end and to the SNBC at the other end;
• wherein, during a fault, the at least one stator three-phase winding is configured to remain connected to the grid.