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

Parameter-independent fault location algorithm and system for t-line in distribution network

A fault location and distribution network technology, which is applied in the direction of detecting faults according to conductor types, fault locations, information technology support systems, etc., to achieve the effect of solving the problem of asymmetric fault location

Active Publication Date: 2019-12-06
SHANDONG UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the probability of asymmetric faults in the distribution network is much higher than other fault types, this algorithm focuses on solving the problem of asymmetric fault location

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
  • Parameter-independent fault location algorithm and system for t-line in distribution network
  • Parameter-independent fault location algorithm and system for t-line in distribution network
  • Parameter-independent fault location algorithm and system for t-line in distribution network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0050] It should be noted that the terminology used here is only used to describe specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0051] In a typical implementation of the present application, the distribution network T-line parameter-indep...

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 distribution network T-shaped line parameter independent fault distance measuring algorithm and system. A ranging equation is established by the main line of a T-shapedline, the length of the branch line and the three-end voltage and current fundamental wave components after the fault, and the fault branch and the fault distance are determined according to the solution result. According to the method, in order to achieve the purposes that the T-shaped line fault ranging is not affected by line parameters, the ranging error caused by the CT and PT precision protection can be prevented, and the condition of the main line and branch line parameter difference can be met, the invention provides a power distribution network T-shaped line fault ranging algorithm suitable for a neutral point through low-resistance grounding. Due to the fact that the probability of the asymmetric fault occurrence of the power distribution network is far larger than that of otherfault types, the algorithm mainly solves the problem of asymmetric fault distance measurement.

Description

technical field [0001] The invention relates to the technical field of fault distance measurement, in particular to an algorithm and a system for fault distance measurement irrelevant to T-line parameters of a distribution network. Background technique [0002] The distribution network is an important part of the power system and an important link directly related to users, and it is responsible for the distribution of electric energy. T-connection has been more and more used in distribution network because of its simple connection, low cost and less corridor area occupation. Therefore, it is of great significance to conduct timely and effective fault location when the T connection fails, which is directly related to the guarantee of power supply reliability. [0003] T-line fault location is mainly divided into two parts: fault branch judgment and fault location. The current T-line ranging method is divided into parameter calculation method and traveling wave ranging meth...

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): G01R31/08
CPCG01R31/086Y04S10/52
Inventor 贠志皓王成斌张恒旭石访
Owner SHANDONG 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