Magnetic shield for a superconducting generator

An electric machine, comprising:

• a stationary field;
• a superconducting field winding disposed on the stationary field;
• and
• an armature disposed concentric to the stationary field, wherein the armature comprises:
• an armature winding comprising a plurality of coils, wherein each coil of the plurality of coils is spaced apart from adjacent coils;
• an armature support structure, the armature winding disposed concentric to the armature support structure;
• and
• a magnetic shield disposed concentric to the armature support structure, wherein the magnetic shield is disposed between the armature winding and the armature support structure, the magnetic shield comprising:
• a first magnetic shield ring;
• a second magnetic shield ring disposed concentric to the first magnetic shield ring and coupled to the first magnetic shield ring via a magnetic shield bridge link;
• and
• an air gap formed between the first magnetic shield ring and the second magnetic shield ring, the magnetic shield bridge link disposed within the air gap.

A wind turbine, comprising:

• a rotor comprising a plurality of blades;
• a shaft coupled to the rotor;
• and
• a super-conducting generator coupled to the rotor via the shaft and configured to be operated via the rotor, wherein the superconducting generator comprises:
• a stationary field;
• a superconducting field winding disposed on the stationary field;
• and
• an armature disposed concentric to the stationary field, wherein the armature comprises:
• an armature winding comprising a plurality of coils, wherein each coil of the plurality of coils is spaced apart from adjacent coils;
• an armature support structure, the armature winding disposed concentric to the armature support structure;
• and
• a magnetic shield, wherein the magnetic shield is disposed between the armature winding and the armature support structure, the magnetic shield comprising:
• a first magnetic shield ring;
• a second magnetic shield ring disposed concentric to the first magnetic shield ring and coupled to the first magnetic shield ring via a magnetic shield bridge link;
• and
• an air gap formed between the first magnetic shield ring and the second magnetic shield ring, the magnetic shield bridge link disposed within the air gap.