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

A Method for Optimizing the Structural Parameters of the Winding Area of ​​an Oil-immersed Transformer

A technology of oil-immersed transformers and transformer windings, which is applied in the field of transformers, can solve problems affecting the service life of transformers, and achieve the effect of reducing the temperature of windings

Active Publication Date: 2022-04-22
CHINA THREE GORGES UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the operation of power transformers, the temperature rise of the windings in the transformer is one of the most critical factors affecting its operating state. Overheating of the windings in the transformer will accelerate the deterioration of the transformer insulation material and affect the service life of the transformer.

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
  • A Method for Optimizing the Structural Parameters of the Winding Area of ​​an Oil-immersed Transformer
  • A Method for Optimizing the Structural Parameters of the Winding Area of ​​an Oil-immersed Transformer
  • A Method for Optimizing the Structural Parameters of the Winding Area of ​​an Oil-immersed Transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Such as Figure 1 to Figure 7 As shown, the transformer in the example adopts an oil-immersed transformer, and the optimization method for the structural parameters of the winding area of ​​the oil-immersed transformer includes the following steps.

[0033] Step 1: According to the structure and electrical parameters of the transformer, establish a two-dimensional axisymmetric model; combine the actual characteristics of the iron core, winding metal conductor, insulating material and transformer oil, set the corresponding material properties in the model, and follow the actual operation of the transformer In this case, the field-circuit coupling finite element model of the transformer is established to obtain the current of the conductor in the winding and the distribution characteristics of the magnetic field in the winding area;

[0034] Step 2: Calculate and obtain the resistance loss and eddy current loss of each turn conductor according to the current and magnetic ...

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 method for optimizing structural parameters of an oil-immersed transformer winding area, including constructing a magnetic field-circuit coupling simulation model of the oil-immersed transformer, calculating the resistance loss and eddy current loss of each turn of conductors, and establishing the flow field-temperature of the transformer winding area. Field-coupled finite element simulation model to obtain the temperature, heat flux density and flow velocity distribution of the surrounding oil passages in the winding area, select the structural parameters affecting the winding area of ​​the oil-immersed transformer, obtain the simulation results of the temperature field under different winding structural parameters and record the winding hot spot temperature , analyze the influence law of each parameter on the winding hot spot temperature and obtain the quadratic regression equation between the transformer hot spot temperature and the winding structure parameters, and obtain the optimal winding structure parameter when the winding hot spot temperature is the minimum value; the present invention is based on the calculation result of the equation The structural parameters of the winding area can be optimized, so as to achieve the purpose of significantly reducing the temperature of the winding hot spot.

Description

technical field [0001] The invention belongs to the technical field of transformers, and in particular relates to a method for optimizing structural parameters of winding regions of oil-immersed transformers. Background technique [0002] Power transformers, as electrical equipment widely used in power systems and corporate users, can connect to the power grid and convert the voltage on the power supply network into voltages that can be used by users. Power transformers play the most important role in the transmission, distribution and use of power. role. [0003] During the operation of power transformers, the temperature rise of the windings in the transformer is one of the most critical factors affecting its operating status. Overheating of the windings in the transformer will accelerate the deterioration of the transformer insulation material and affect the service life of the transformer. In the winding area of ​​oil-immersed transformers, structural parameters such as...

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 Patents(China)
IPC IPC(8): G06F30/23G06F30/17H01F41/00
CPCG06F30/23G06F30/17H01F41/00
Inventor 袁发庭杨文韬王玥韩毅凛姜发
Owner CHINA THREE GORGES UNIV
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com