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A large-capacity high-temperature superconducting motor

A high-temperature superconducting, large-capacity technology, applied in the field of large-capacity offshore direct-drive wind turbines or marine propulsion motors, superconducting motors, and can solve problems such as increased compensation difficulty

Active Publication Date: 2020-04-28
WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the series structure, due to the shortening of the low-temperature part, it needs to be compensated structurally. Usually, two types of compensation structures, sliding and elastic, are used. For large structures, the corresponding compensation difficulty increases

Method used

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  • A large-capacity high-temperature superconducting motor
  • A large-capacity high-temperature superconducting motor
  • A large-capacity high-temperature superconducting motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] figure 1 Shown is the general assembly diagram of the wind power motor of the present invention, which is composed of a stator 100, a rotor 200, and a low-temperature cooling system 300 for providing refrigerant.

[0030] figure 2 Shown is a schematic structural view of the stator 100 , which consists of a frame 101 , a stator back iron 102 and a stator winding 103 . According to the electromagnetic scheme, the motor adopts an air gap armature structure, which reduces the existence of iron teeth, and is supported by non-magnetic composite materials or stainless steel. The winding 103 adopts single-layer winding, and the wire material adopts Litz wire. The cooling of the stator 100 adopts a water cooling structure.

[0031] The rotor 200 includes a normal temperature part and a low temperature part connected to the end of the normal temperature part by means of supporting insulation parts. The connecting part is divided into radial support rods 212 and tangential sup...

Embodiment 2

[0046] The difference from the above-mentioned embodiments is that the stator of this motor adopts the stator of an ordinary AC motor, and iron teeth are used.

Embodiment 3

[0048] The difference from the above embodiments is that the stator of this motor adopts an air-cooled structure, and the stator adopts Robel coils.

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Abstract

The invention discloses a large-capacity high-temperature superconducting motor comprising a stator, a rotor and a cryogenic cooling system for providing a refrigerant. The stator is composed of a base, stator back iron and a stator winding. The rotor comprises a normal-temperature portion and a low-temperature portion. The normal-temperature portion includes a rotating shaft, a rotating shaft webplate, a yoke core and a magnetic pole core. The low-temperature portion includes a low-temperature support skeleton and a refrigerant transmission coupling device. The low-temperature support skeleton is provided with a superconducting magnet. The refrigerant transmission coupling device is connected to the rotating shaft. The low-temperature support skeleton is further provided with a low-temperature end plate. The low-temperature end plate is connected with the rotating shaft web plate through a tangential support rod, and is connected with a compensation disc spring through a radial support rod. A refrigerant flow path is arranged in the low-temperature support skeleton. A refrigerant distribution pipe is connected to a cooling hole provided in the end portion. The refrigerant transmission coupling device is provided with an external refrigerant inlet, an external refrigerant outlet, an internal refrigerant inlet, and an internal refrigerant outlet, and is connected to the refrigerant distribution pipe through a refrigerant collecting pipe.

Description

technical field [0001] The invention belongs to the field of superconducting motors, in particular to a large-capacity high-temperature superconducting motor, which is especially suitable for large-capacity offshore direct-drive wind power generators requiring high power, low speed, compact structure, high power density, and low operating costs. Or ship propulsion motors and other fields. Background technique [0002] Superconducting motors are a technology developed since the 1960s. The use of superconducting materials in the motor can significantly increase the air gap magnetic density of the motor, thereby reducing the volume and weight of the motor. At the same time, since there is no loss in the superconducting wire, the efficiency and stability of the system can be improved. [0003] There are many kinds of superconducting motor structures in the prior art, but the structure of most related motors is an axial series structure, or adopts a low-temperature overall supp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K55/00H02K3/04H02K9/193H02K9/10
CPCY02E40/60
Inventor 谢峰周勇郑军
Owner WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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