Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for determining power grid direction protection setting calculation sequence

A technology of directional protection and setting calculation, which is applied to emergency protection circuit devices, emergency protection devices with automatic disconnection, circuit devices, etc., can solve the problems of unfavorable optimization of the fixed value performance of the relay protection of the whole network, and achieve the benefit of relay protection The effect of fixed value performance

Inactive Publication Date: 2018-10-12
GUANGDONG POWER GRID CO LTD +2
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The embodiment of the present application provides a method and device for determining the calculation sequence of the power grid direction protection setting, which solves the problem that the minimum breakpoint set method needs to disconnect more protection dependencies, thereby resulting in the optimization of the performance of the relay protection setting value of the entire network unfavorable technical problems

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
  • Method and device for determining power grid direction protection setting calculation sequence
  • Method and device for determining power grid direction protection setting calculation sequence
  • Method and device for determining power grid direction protection setting calculation sequence

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The embodiment of the present application provides a method and device for determining the calculation sequence of the power grid direction protection setting, which solves the problem that the minimum breakpoint set method needs to disconnect more protection dependencies, thereby resulting in the optimization of the performance of the relay protection setting value of the entire network Unfavorable technical issues.

[0051]In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative eff...

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

Embodiments of the application disclose a method and a device for determining a power grid direction protection setting calculation sequence, comprising: establishing a mathematical model for solvingthe minimum protection dependency disconnection set by using a minimum protection dependency disconnection set as an optimization target, wherein the protection dependency disconnection set is a set of multiple protection dependencies required to decouple all directed loops in the preset ring network; and solving the minimum protection dependency disconnection set for the mathematical model to determine the grid direction protection setting calculation sequence. The invention solves the technical problem that the minimum breakpoint set method needs to disconnect more protection dependencies, which causes disadvantages for the optimization of the relay protection setting performance of the whole network.

Description

technical field [0001] The present application relates to the technical field of relay protection, and in particular to a method and device for determining a calculation sequence of power grid direction protection setting. Background technique [0002] Relay protection generally refers to when an accident or failure occurs in the power system, through the action of the relay protection element, the faulty line is disconnected or the backup power supply is switched on, so as to cut off the short-circuit current or ensure power supply as soon as possible to reduce the damage to the power system and losses. When the relay protection element will act needs to be determined in advance through setting calculations. [0003] In the calculation of power system relay protection setting, if the calculation of the fixed value of a protection device Ri needs to cooperate with other protection devices Rj, this cooperation relationship is called protection dependence, expressed as Rj→Ri,...

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): H02H3/00G06F17/50
CPCG06F30/39H02H3/006
Inventor 李一泉吴梓亮陈明王峰李银红曾耿晖石东源罗跃胜
Owner GUANGDONG POWER GRID CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com