High-voltage motor stator coil corona-preventing structure optimizing method based on electric field analysis

A stator coil and anti-corona structure technology, applied in the shape/style/structure of winding insulation, electrical digital data processing, special data processing applications, etc., can solve problems such as calculation errors, difficult to obtain three-dimensional electric field conditions, etc., to improve simulation Efficiency, the effect of reducing the amount of simulation calculation

Active Publication Date: 2015-01-07
HUNAN UNIV OF SCI & TECH
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the advantages of simple modeling, fast solution, and no need to consider the state of the electric field in space, but the algorithm is difficult to obtain th

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
  • High-voltage motor stator coil corona-preventing structure optimizing method based on electric field analysis
  • High-voltage motor stator coil corona-preventing structure optimizing method based on electric field analysis

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] In the following, the present invention will now be described more fully with reference to the accompanying drawings, in which various embodiments are shown. However, the present invention can be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0026] Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[0027] Such as figure 2 As shown, the method for optimizing the anti-corona structure of the stator coil of a high voltage motor based on electric field analysis includes the following steps:

[0028] A. According to the position of the coil that is more prone to corona, determine the analysis and modeling part of the stator coil anti...

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 relates to a high-voltage motor stator coil corona-preventing structure optimizing method based on electric field analysis. The high-voltage motor stator coil corona-preventing structure optimizing method includes the following steps: determining the stator coil corona-preventing structure analysis modeling portion; obtaining modeling parameters according to the structure and the size of the modeling portion determined in the step (1); building a three-dimensional finite element model of the coil corona-preventing portion according to the modeling parameters obtained in the step (2); defining the characteristics of various materials of a coil and the insulation corona-preventing portion in the calculating model; determining the type of stimulation exerted on the stator coil calculating model and boundary conditions; carrying out finite element calculation and the electric field analysis on the coil calculating model, and judging the problems of the corona-preventing structural design. According to the high-voltage motor stator coil corona-preventing structure optimizing method based on the electric field analysis, the three-dimensional finite element analysis model is built by reasonably simplifying and assuming a practical model, and the visible and accurate corona-preventing layer electric field distribution result is accordingly obtained; in addition, the simulation calculated amount can be effectively reduced, and the simulation efficiency can be improved.

Description

technical field [0001] The invention relates to an optimal design method of an anti-corona structure for a stator coil of a high-voltage motor based on electric field analysis. Background technique [0002] During the operation of the high-voltage motor, due to the concentration of the electric field at the ventilation slot and the outlet slot, the insulation surface potential gradient at the slot at the end of the stator winding coil of the high-voltage motor is very high, and the electric field distribution is extremely uneven. Motors with a rated voltage of 6kV and above The notch of the phase end coil of the stator winding is already in the halo state. When the local field strength reaches a certain value, the gas will be partially dissociated, and a blue halo will appear at the electric nest, generating a corona. The occurrence of corona is accompanied by the generation of heat, ozone and nitrogen oxides, which will accelerate the aging of the insulation structure, sho...

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
IPC IPC(8): H02K3/40G06F17/50
CPCG06F30/398H02K3/40
Inventor 张小平张铸
Owner HUNAN UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap