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High-temperature superconducting motor having rotor with permanent magnets hybrid-magnetic-circuit flux

A high-temperature superconducting and hybrid magnetic circuit technology, which is applied to electrical components, electromechanical devices, etc., to achieve the effects of increasing overload capacity, improving practicability, and reducing copper consumption

Active Publication Date: 2011-02-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of large copper loss, large armature reaction and complex cooling structure in traditional superconducting motors, the present invention proposes a rotor with permanent magnets High temperature superconducting motor with mixed magnetic flux

Method used

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  • High-temperature superconducting motor having rotor with permanent magnets hybrid-magnetic-circuit flux
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  • High-temperature superconducting motor having rotor with permanent magnets hybrid-magnetic-circuit flux

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specific Embodiment approach 1

[0009] Specific implementation mode three: combination figure 2 Describe this embodiment, the difference between this embodiment and the specific embodiment is that the axial through hole 4-2 of the tangentially magnetized permanent magnet of the rotor 4 with radial magnetic steel and tangential magnetic steel is located in the radial direction of the radial direction. The bottom corner on one side of the axial through hole 4-1 of the magnetized permanent magnet is a rounded corner. Other compositions and connection methods are the same as those in Embodiment 1. The purpose is to increase the mechanical strength of the motor rotor.

specific Embodiment approach 2

[0010] Embodiment 4: This embodiment differs from Embodiment 1 in that the AC armature winding 8 adopts high-temperature superconducting wires. Other compositions and connection methods are the same as those in Embodiment 1. The purpose is to reduce the copper loss of the motor

specific Embodiment approach 3

[0011] Specific implementation mode five: combination figure 1 This embodiment is described. The difference between this embodiment and specific embodiments 1 or 4 is that the stator adopts a fractional slot structure, so that racetrack-shaped superconducting coils can be placed in adjacent slots of the armature winding of the motor. Other compositions and connection methods are the same as those in Embodiment 1 or Embodiment 4.

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Abstract

A hybrid-magnetic-circuit flux high-temperature superconducting motor having a rotor with permanent magnets is provided, aiming at solving the problems of the traditional superconducting motors, such as huge copper loss, strong armature reaction and complex cooling structure. The motor comprises a stator module, a body module, two bearings and a motor rotating shaft; wherein, the body module is composed of a case, a first end cap and a second end cap; the stator module is composed of an armature iron core and an AC armature winding; the armature iron core is fixedly connected with the case bythe way of mechanical tight fit; the AC armature winding is wound on the armature iron core; the two bearings are respectively arranged on inner rings serving as bearing blocks in the first end cap and the second end cap; the motor rotating shaft is connected with the case provided with the first end cap and the second end cap in a rotary manner through the two bearings. The motor also comprises the rotor with radial and tangential magnet steels; wherein, the rotor is arranged on the motor rotating shaft; an air gap is arranged between the rotor and the armature iron core. The motor has the advantages of little copper loss, weak armature reaction and simple cooling structure.

Description

technical field [0001] The invention relates to a superconducting motor, in particular to a high-temperature superconducting motor with mixed magnetic flux. Background technique [0002] With the development of high-temperature superconducting wire technology, superconducting power technology has brought extremely far-reaching impacts on economic development and social progress. Superconducting motors are widely used in the fields of ship electric propulsion systems and electric locomotive traction due to their advantages of high energy density, large limit capacity of a single machine, high efficiency, small size, and light weight. However, the structure of traditional superconducting motors is generally imitated. Conventional synchronous motor structure, the rotor adopts superconducting DC excitation winding, the stator adopts copper winding, and the rotating shaft adopts a hollow shaft structure to provide a circulation path for the refrigerant. This structure has probl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K55/00
Inventor 李立毅曹继伟寇宝泉杨松
Owner HARBIN INST OF TECH