Rotor and machine having superconducting permanent magnets
AssigneeRolls-Royce Deutschland Ltd & Co KG
InventorPeter Kummeth
Life of this patent
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Abstract
The invention relates to a rotor (5) for an electric machine (1) having a central rotor axis (A). The rotor comprises a rotor carrier (7), at least one superconducting permanent magnet (9) carried mechanically separately by the rotor carrier (7), and a damper shield having at least one shielding element (13a, 13i), which surrounds the at least one superconducting permanent magnet (9) and which is formed from an electrically conductive material having an electric conductivity of less than 30·106 S/m. The invention further relates to an electrical machine (1) having a rotor (5) of this kind.
Claims15
A rotor for an electrical machine with a central rotor axis, the rotor comprising:
- a rotor support;
- at least one superconducting permanent magnet that is mechanically supported by the rotor support;
- and
- a damping shield with at least one shielding element that surrounds the at least one superconducting permanent magnet and is formed from an electrically conductive material with an electrical conductivity σ of at least 30·106 S/m.
An electrical machine comprising:
- a rotor for an electrical machine with a central rotor axis, the rotor comprising:
- a rotor support;
- at least one superconducting permanent magnet that is mechanically supported by the rotor support;
- and
- a damping shield with at least one shielding element that surrounds the at least one superconducting permanent magnet and is formed from an electrically conductive material with an electrical conductivity a of at least 30·106 S/m;
- and
- a stator that is arranged in a fixed manner.
Dependencies are inferred from the claim text.