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

Multi-physics field multi-parameter inversion method for electric power equipment

A power equipment and multi-physics technology, applied in data processing applications, special data processing applications, constraint-based CAD, etc., can solve problems such as unsatisfactory detection results, achieve accurate evaluation, and increase the effect of coupling relationships

Active Publication Date: 2021-08-03
SHANGHAI JIAO TONG UNIV
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Moreover, there are many types and large quantities of power equipment. At present, most of the internal status detection of power equipment relies on manual and image recognition technology, and the detection effect is not ideal.

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
  • Multi-physics field multi-parameter inversion method for electric power equipment
  • Multi-physics field multi-parameter inversion method for electric power equipment
  • Multi-physics field multi-parameter inversion method for electric power equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] refer to Figure 1 ~ Figure 3 , which is the first embodiment of the present invention, this embodiment provides a multi-physics multi-parameter inversion method for power equipment, including:

[0047] S1: Based on the finite volume strategy, establish a coupling calculation model for power equipment, and perform coupling calculations for the multi-physics fields of power equipment.

[0048] It should be noted that the finite volume method (Finite Volume Method) is also called the Control Volume Method (Control Volume Method), and its basic idea is: divide the calculation area into grids, and make each grid point surrounded by an interactive Non-repetitive control volume; integrate the differential equation (control equation) to be solved for each control volume to obtain a set of discrete equations; the unknowns are dependent variables on the grid points; in order to obtain the integral of the control volume , it must be assumed that the value of the dependent variable...

Embodiment 2

[0088] In order to verify and explain the technical effect adopted in this method, this embodiment chooses the AR power equipment fault identification method and adopts this method to conduct a comparative test, and compares the test results by means of scientific demonstration to verify the real effect of this method.

[0089] The operation steps of the AR power equipment fault identification method are complicated, and it is difficult to accurately evaluate the status of massive power equipment.

[0090] In order to verify that this method can more accurately evaluate the state of power equipment compared with the AR power equipment fault identification method, in this embodiment, the AR power equipment fault identification method and this method will be used to evaluate and compare the state of the transformer in real time.

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 multi-physics-field multi-parameter inversion method for power equipment, and the method comprises the steps: building a power equipment coupling calculation model based on a finite volume strategy, and carrying out the coupling calculation of a plurality of physics fields of the power equipment; establishing a multi-physics field inversion model according to a coupling calculation result, taking the surface temperature of the power equipment as the input of the multi-physics field inversion model, and performing parameter inversion on the multi-physics field of the power equipment; performing inversion calculation on internal parameter distribution of the power equipment according to a parameter inversion result; constructing a power equipment full-space information three-dimensional model, inputting an inversion calculation result into the three-dimensional model, and evaluating the state of the power equipment through the power equipment full-space information three-dimensional model. According to the method, coupling calculation is carried out on multiple physical fields of the power equipment through the finite volume method, the coupling relation is increased, inversion calculation is carried out on unobservable operation parameters in the power equipment, and accurate evaluation of the internal state of the power equipment is achieved.

Description

technical field [0001] The invention relates to the technical field of power equipment detection, in particular to a multi-physics field and multi-parameter inversion method for power equipment. Background technique [0002] The structure of power equipment is usually complete and sealed, such as oil-immersed power transformers, GIS, etc. Due to problems such as insulation and sealing, the internal state of the transformer, such as internal heat generation and inter-turn short circuit, can only be obtained through indirect sensing methods such as external vibration and discharge. There is not a one-to-one correspondence between the internal faults of power equipment and their observable phenomena. How to build efficient representation, modeling and evaluation methods for the internal state of equipment through different detection data has always been a difficult problem for equipment operation and maintenance. [0003] Moreover, there are many types and large quantities of ...

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): G06F30/20G06Q10/06G06Q50/06G06F111/04G06F119/08
CPCG06F30/20G06Q10/0639G06Q50/06G06F2111/04G06F2119/08Y02E60/00
Inventor 刘亚东严英杰江秀臣陈思
Owner SHANGHAI JIAO TONG 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