Passive fault current limiter for wind power applications

摘要

The present invention relates to a device (100) for limiting a fault current for a generator (200), in particular of a wind turbine. A first frame (110) is made of a ferromagnetic material, wherein the first frame (110) comprises a first frame section (111) and a further first frame section (112), wherein a first gap (101) is formed between the first frame section (111) and the further first frame section (112). A first coil (102) is wound around the first frame section (111), wherein the first coil (102) is connectable to a first stator winding of a stator of the generator (200). A further first coil (103) is wound around the further first frame section (112), wherein the further first coil (103) is connectable to an electronic device (300). A first permanent magnet element (104) is arranged inside the first gap (101). The first frame section (111) and the further first frame section (112) are formed with respect to each other such that an electromagnetic interaction between the first coil (102) and the first permanent magnet element (104) and the further first coil (103) and the first permanent magnet element (104) is provided.