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Stator-winding vacuum water-cooled type non-salient pole generator

A technology of vacuum water cooling and stator winding, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of high loss of stator copper winding, high temperature of stator copper winding, large temperature difference along the axial direction, etc., to achieve cost saving, The effect of reducing the heat resistance level requirements and ensuring safe and stable operation

Active Publication Date: 2015-09-09
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a stator winding vacuum water-cooled hidden pole generator to solve the problem of high temperature of the stator copper winding and large temperature difference along the axial direction of the hidden pole generator due to the high loss of the stator copper winding and poor cooling effect , can effectively improve the cooling effect of stator copper winding and stator copper winding insulation

Method used

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  • Stator-winding vacuum water-cooled type non-salient pole generator
  • Stator-winding vacuum water-cooled type non-salient pole generator
  • Stator-winding vacuum water-cooled type non-salient pole generator

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specific Embodiment approach 1

[0018] Specific implementation mode one: combine figure 1 Describe this embodiment mode, the stator winding vacuum water-cooled cathode generator described in this embodiment mode, it comprises stator copper winding 1, stator water pipe 2, stator copper winding insulation 3, vacuum layer 4, interlayer insulation 5 and slot wedge 6 . Stator copper winding 1 is composed of stator upper layer copper winding 1-1 and stator lower layer copper winding 1-2, stator water pipe 2 is composed of stator upper layer water pipe 2-1 and stator lower layer water pipe 2-2, stator copper winding insulation 3 is composed of stator upper layer copper winding Composed of winding insulation 3-1 and stator lower layer copper winding insulation 3-2. The stator water pipe 2 is installed between the stator copper winding 1 and the stator copper winding insulation 3 along the circumferential direction, and the stator water pipe 2 is in close contact with the stator copper winding 1 and the stator copp...

specific Embodiment approach 2

[0021] Specific implementation mode two: combination figure 2 This embodiment is described. The difference between this embodiment and Embodiment 1 is that it increases the number of water pipes 2-1 on the upper layer of the stator, effectively reducing the temperature of the copper windings 1-1 on the upper layer of the stator that generate more serious heat. Other components and connections are the same as those in Embodiment 1.

specific Embodiment approach 3

[0022] Specific implementation mode three: combination image 3 Describe this embodiment. The difference between this embodiment and Embodiment 1 is that it installs a heat shield A7 in the middle of the stator upper layer copper winding 1-1 and the stator upper layer copper winding insulation 3-1. The heat shield A7 The thickness is 3 mm-4 mm, which is taken as 3 mm in this embodiment. Install a heat shield B8 at the middle position between the stator lower copper winding 1-2 and the stator lower copper winding insulation 3-2. The thickness of the heat shield B8 is 1 mm-2 mm, which is 1 mm in this embodiment. The area between the heat shield and the stator copper winding insulation 3 is evacuated as an outer vacuum layer 9 and the area between the stator copper winding 1 and the heat shield is evacuated as an inner vacuum layer 10 . After installing the heat insulation board, the heat transfer from the stator copper winding 1 to the stator copper winding insulation 3 can be ...

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Abstract

The invention, which relates to the motor field, discloses a stator-winding vacuum water-cooled type non-salient pole generator. With the generator, problems that the heating phenomenon of the copper stator winding is severe and the temperature difference of the cooper stator winding is large according to the existing non-salient pole generator can be solved. A stator water pipe is installed between a copper stator winding and a copper stator winding insulation unit along a peripheral direction; and the stator water pipe, the copper stator winding, and the copper stator winding insulation unit are in close contact. An area encircled by the stator water pipe, the copper stator winding, and the copper stator winding insulation unit is pumped as a vacuum layer. Flowing cooling water flows in the stator water pipe; and the cross section of the stator water pipe is in a square shape. According to the invention, the generator has a simple structure; the temperature rise of the copper stator winding with the severe heating phenomenon and the heat transmitting capability in the non-salient pole generator can be effectively suppressed; the temperatures of the copper stator winding and the copper stator winding insulation unit are reduced; and the stable operation capability of the non-salient pole generator is enhanced.

Description

technical field [0001] The invention relates to a stator winding vacuum water-cooled hidden pole generator, which belongs to the field of motors. Background technique [0002] The performance of a large-scale secluded pole generator has a great influence on the power supply and the stability of the grid. How to improve the single-unit capacity and operating performance of a secluded pole generator has become an important task in generator design. In order to increase the single-unit capacity of the secluded pole generator, it is necessary to increase the current density in the copper winding of the stator, that is, to increase the electromagnetic load of the generator, but this will inevitably lead to a corresponding increase in the loss of each component in the generator , leading to a further increase in the temperature rise of each component in the secluded pole generator, especially the temperature rise of the stator copper winding is more obvious, and it is very easy to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/197H02K1/20
Inventor 韩继超姜金刚戈宝军李伟力
Owner HARBIN UNIV OF SCI & TECH
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