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Hybrid-magnetic-circuit flux high-temperature superconducting motor having rotor with permanent magnets

A high-temperature superconducting, hybrid magnetic circuit technology, applied in the direction of electrical components, electromechanical devices, etc., can solve the problems of large copper consumption, large armature reaction, complex cooling structure, etc., to simplify the low-temperature cooling structure and reduce the armature reaction , the effect of improving reliability

Active Publication Date: 2009-12-09
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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  • Hybrid-magnetic-circuit flux high-temperature superconducting motor having rotor with permanent magnets
  • Hybrid-magnetic-circuit flux high-temperature superconducting motor having rotor with permanent magnets

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Experimental program
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specific Embodiment approach 1

[0007] Specific implementation mode one: combine figure 1 Describe this embodiment, this embodiment includes a stator assembly, a body assembly, two bearings 5 ​​and a motor shaft 6; the body assembly is composed of a casing 1, a first end cover 2 and a second end cover 7; the first end cover 2 and The second end cover 7 is fixedly connected with the casing 1 by screws; the stator assembly is composed of the armature core 3 and the AC armature winding 8; the armature core 3 is fixedly connected with the casing 1 in a mechanical tight fit; the AC armature winding 8 is wound on the armature core 3; two bearings 5 ​​are respectively arranged on the inner rings of the first end cover 2 and the second end cover 7 as bearing seats, and the motor shaft 6 is connected with the second end cover through the two bearings 5 One end cover 2 and the casing 1 of the second end cover 7 are rotationally connected; it also includes a rotor 4 with radial magnets and tangential magnets; the rotor...

specific Embodiment approach 2

[0008] Specific implementation mode two: combination figure 2 Describe this embodiment, the difference between this embodiment and specific embodiment 1 lies in the axial through holes 4 of every two adjacent radially magnetized permanent magnets of the rotor 4 with radial magnets and tangential magnets The inner yoke between -1 is axially provided with a keyway 4-3; the motor shaft 6 is provided with a key, the number of the keyway 4-3 and the key is the same as the number of poles of the motor, and the key of the motor shaft 6 and The key grooves 4-3 of the rotor 4 of the radial magnetic steel and the tangential magnetic steel are plugged and fitted, and other components and connection methods are the same as those in the first embodiment. The purpose of setting the keyway 4-3 is to make the connection between the rotor 4 with the radial magnetic steel and the tangential magnetic steel and the motor shaft 6 tighter, and the keyway 4-3 also acts as a magnetic isolation bridg...

specific Embodiment approach 3

[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 magnet steel and tangential magnet steel is located in 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.

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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 by the 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 proble...

Claims

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Application Information

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