Double-armature winding superconducting motor

Abstract

The invention relates to a double-armature winding superconducting motor which comprises a superconducting rotor system, a stator system and a refrigerating system, wherein the superconducting rotor system comprises a superconducting exciting winding, a superconducting coil support, a rotor support and a rotating shaft; the refrigerating system comprises a double-layer Dewar; the stator system comprises a peripheral armature winding, a peripheral stator iron yoke, an internal armature winding and an internal stator iron yoke; the rotating shaft is externally sheathed on and connected with the rotor support; the Dewar is arranged on the rotor support; the outer wall of the Dewar is fixed on the rotor support; the superconducting coil support is fixed in the Dewar and passes through one end of the Dewar; the superconducting exciting winding is fixed on the superconducting coil support in the Dewar; the peripheral armature winding and the internal armature winding are respectively arranged at the outer side and the inner side of the outer wall of the Dewar; the peripheral stator iron yoke is arranged at the outer side of the peripheral armature winding; the internal stator iron yoke is arranged at the inner side of the internal armature winding. The double-armature winding superconducting motor fully utilizes the strong magnetic field generated by the superconducting exciting winding through the double armature windings so as to further increase the power density of a superconducting motor.

Description

technical field [0001] The invention relates to superconducting motor technology, in particular to a superconducting motor with double armature windings. Background technique [0002] The current superconducting motor generally adopts an inner rotor structure, that is, the superconducting coil is used as the excitation winding of the motor rotor, and the copper wire armature winding is installed on the periphery of the superconducting rotor. The current-carrying capacity of the superconducting strip is more than 100 times higher than that of ordinary copper wires, so it can generate a magnetic field of up to 2 T without adding an iron core, thereby greatly improving the power density of the motor. [0003] For example, the Chinese patent literature publication number is CN102969873A, and the invention patent application with the publication date of March 13, 2013 discloses a high-temperature superconducting motor, including an electromagnetic system, a refrigeration system a...

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Problems solved by technology

[0004] However, in a structure similar to the above superconducting motor, the performance of the superconducting strip will attenuate under an external magnetic field, so generally an iron core must be installed for the superconducting

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