Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Large phase modifier stator end integrated series water internal cooling circulation system and ventilation structure

A stator end and circulation system technology, applied in cooling/ventilation devices, electromechanical devices, casings/covers/supports, etc., can solve the thermal deformation of end structural parts and vibration of the unit, affecting the service life of the camera, It can improve the reliability of water supply, avoid the concentration of magnetic leakage at the end, and increase the capacity of a single machine.

Inactive Publication Date: 2018-10-30
HARBIN UNIV OF SCI & TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the grid voltage suddenly increases or sags, the large-scale condenser needs to adjust the rotor excitation in time to absorb or send reactive power to the grid, and then this instantaneous reactive power adjustment changes both the armature current and the excitation current. When the current increases When the magnetic flux leakage at the end increases correspondingly, a large eddy current loss will be induced in the metal structures at the end of the condenser stator. Especially, when the end of the condenser is magnetically shielded, the At the same time as the external magnetic flux leakage, its own electromagnetic loss increases. Whether it is the concentration of losses in the metal components or the magnetic shielding, it will bring a strong thermal shock to the end components of the condenser. If the structure of the end of the condenser or the design of the cooling system is not good Reasonably, this kind of thermal shock will further evolve into unpredictable consequences such as thermal deformation of the end structural parts and vibration of the unit, which will not only affect the service life of the condenser, but also bring harm to the high-voltage transmission system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Large phase modifier stator end integrated series water internal cooling circulation system and ventilation structure
  • Large phase modifier stator end integrated series water internal cooling circulation system and ventilation structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] Example: see figure 1 and figure 2 The stator end of the large-scale condenser in this embodiment is integrated in series with the water internal cooling circulation system and the ventilation structure, including the stator winding 4, the end iron core 6, the tooth pressure plate 7, the rotating shaft 8, the magnetic shield 9, the inner pressure ring 10, The outer pressure ring 11, the machine base and the outer casing 23; the two sides of the end iron core 6 are pressed by the tooth pressure plate 7, the inner pressure ring 10 is pressed on the tooth pressure plate 7, and the tooth pressure plate 7 is provided with a magnetic shield 9, The outer side of the magnetic shield 9 is pressed by the outer pressure ring 11; the end iron core 6 is provided with a two-stage frame to the outside, the frame is provided with an outer casing 23 outside the circumference, and the end iron core 6 is provided with a rotating shaft 8;

[0029] The integrated series water internal coo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a large phase modifier stator end integrated series water internal cooling circulation system and a ventilation structure, and belongs to the technical field of motors. In order to solve the thermal shock problem of too large end components caused by instant reactive compensation of a phase modifier during voltage jump inside an ultra-high voltage power transmission system,the invention provides an end integrated series cooling system that a phase modifier stator circulating cooling water pipe is led out from a stator winding end to enter into an end iron core througha cooler, an outer pressing ring, magnetic shielding teeth, an inner pressing ring and a tooth pressing plate, and the stator circulating cooling water pipe adopts a crossed transposition knitted cooling structure at the magnetic shielding teeth; moreover, an inclined air induction ditch is formed in an air guide rack, and cooling air pressed by a fan at the end of a phase modifier is guided intoan air flue on the back of a section iron core yoke through magnetic shielding in a relatively short-cut path. According to the large phase modifier stator end integrated series water internal coolingcirculation system and the ventilation structure disclosed by the invention, the integral cooling effect of the phase modifier used for the ultra-high voltage power transmission system can be promoted, and safe, stable and reliable operation of the phase modifier are guaranteed effectively.

Description

technical field [0001] The invention relates to a water-cooling circulation system and a ventilation structure at the stator end of a condenser, in particular to an integrated series-connected water internal cooling circulation system and a ventilation structure at the stator end of a large-scale condenser, and belongs to the technical field of electrical engineering. Background technique [0002] As a device that provides reactive power compensation to the grid, the condenser is of great significance to ensure the safe and stable operation of the UHV DC transmission project. [0003] When the grid voltage suddenly increases or sags, the large-scale condenser needs to adjust the rotor excitation in time to absorb or send reactive power to the grid, and then this instantaneous reactive power adjustment changes both the armature current and the excitation current. When the current increases When the magnetic flux leakage at the end increases correspondingly, a large eddy curre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/19H02K5/20
CPCH02K5/20H02K9/19
Inventor 王立坤寇宝泉孙玉田谢颖郭庆波
Owner HARBIN UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products