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

A grid fault diagnosis method based on multi-element grid database

A technology for power grid faults and diagnosis methods, which is applied in database models, electrical digital data processing, structured data retrieval, etc. The effect of reporting rate and improving accuracy

Active Publication Date: 2021-11-19
STATE GRID SHAANXI ELECTRIC POWER RES INST +3
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The grid scale is getting bigger and bigger, and various energy structures are becoming more and more complex. The traditional fault diagnosis function based on a single data source can no longer meet the needs of grid fault diagnosis. A new grid fault diagnosis method is urgently needed.

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 grid fault diagnosis method based on multi-element grid database
  • A grid fault diagnosis method based on multi-element grid database
  • A grid fault diagnosis method based on multi-element grid database

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] see figure 1 with figure 2 , a kind of grid fault diagnosis method based on multi-element grid database of the present invention, realizes according to the following steps:

[0034] Step 1. Extract fault data from the database, and establish a fault sample training feature matrix; each fault category in the fault sample training feature matrix is ​​in one-to-one correspondence with its sample feature data.

[0035] Step 1 specifically includes:

[0036] In the multi-element power grid, the fault data is ex...

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 power grid fault diagnosis method based on a multi-element grid database, comprising: collecting fault data of a multi-element power grid, establishing a fault sample training feature matrix according to the fault data; obtaining the test data Y to be diagnosed through the minimum norm constraint, obtaining Sparse coefficient x; obtain the test sample data according to the sparse coefficient x, calculate the minimum residual error between the test sample data and each fault sample feature data in the fault sample training feature matrix, compare the minimum value of the minimum residual error, determine the fault category, and complete Grid fault diagnosis. The power grid fault diagnosis method of the invention can improve the accuracy of fault diagnosis and reduce the rate of fault false alarms.

Description

technical field [0001] The invention belongs to the technical field of multiple grid fault diagnosis, and in particular relates to a grid fault diagnosis method based on a multiple grid database. Background technique [0002] Energy conservation and emission reduction is a common challenge and an important issue facing the world. The Chinese government attaches great importance to energy conservation and emission reduction in the power industry, and proposes to implement energy-saving power generation dispatching in the power field to improve energy efficiency in the power industry, reduce environmental pollution, and promote energy conservation. and power structure adjustment, wind power and photovoltaics are the most mature intermittent energy utilization methods. Northwest is a key development area for new energy power generation. With the rapid development of wind power, photovoltaic and other new energy power generation in Northwest Power Grid, the power structure has u...

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): G01R31/00G01R31/50G06F16/2458G06F16/28
CPCG01R31/00G01R31/50
Inventor 解振学吴子豪王永庆王磊黑新宏王若谷魏昊焜尚渭萍张燕平师鹏李明田刚旗李华李广万天虎白欢周艺环张小平王辰曦唐露甜李高阳杜楠梁勇赵嘉刘桐
Owner STATE GRID SHAANXI ELECTRIC POWER RES INST
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