Remote diagnosis method for motion behavior of protection element at dispatching terminal

A technology for protection components and remote diagnosis, which is applied in the direction of measuring devices, instruments, and measuring electronics. It can solve problems such as the inability to confirm the weak links of protection components, the lack of protection logic functions, and the inability to analyze protection components. It is easy to understand and set, The effect of small amount of data calculation

Active Publication Date: 2015-09-02
NARI TECH CO LTD +3
View PDF6 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the initial stage, SOE (record of events) signals and protection action signals were mainly used as data sources. Due to the lack of relevant information on protection logic functions, it was impossible ...

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
  • Remote diagnosis method for motion behavior of protection element at dispatching terminal
  • Remote diagnosis method for motion behavior of protection element at dispatching terminal
  • Remote diagnosis method for motion behavior of protection element at dispatching terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0042] Such as figure 1 As shown, the information of secondary equipment such as measurement and control devices, protection devices, integrated protection and measurement and control devices, and fault recorders in each substation is transmitted to the dispatching master station through the communication network. This method can be used as an advanced application module in the intelligent dispatching system, and it is recommended to be placed in the dispatching system II area ( figure 1 The upper left corner of ) comprehensive server, which conducts remote analysis on the action behavior of protection components, and is mainly used by relay pro...

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 remote diagnosis method for the motion behavior of a protection element at a dispatching terminal. The remote diagnosis method is characterized in that the method comprises following steps: S01: establishing an association model of primary equipment and relay protection; S02: transmitting and collecting relay protection intermediate logic node information, SOE information, protection motion information, telecommand deflection information, and fault record files from a substation to the dispatching terminal; S03: determining whether a power grid has faults; S04: determining a fault point via protection motion information, breaker deflection, and protection fault range-measuring information and obtaining association relay protection if the power grid has faults; S05: extracting intermediate logic node files of association relay protection; S06: comparing and analyzing each protection member according to self-consistency and consistency of each protection member and motion strategy; and S07: determining whether all the protection member motions are correct. According to the method, hidden problems of the protection members are discovered in advance, and necessary data is provided for remote operation and maintenance of relay protection.

Description

technical field [0001] The invention relates to a remote diagnosis method for the action behavior of a protection element at a dispatching end. Background technique [0002] The State Grid Corporation of China began to implement the construction policy of "integration of regulation and maintenance, and integration of operation and maintenance". The management mode of relay protection has undergone a fundamental change. and maintenance information involved less. In the smart grid dispatching system, the secondary equipment on-line monitoring and analysis module provides functions such as power supply voltage, temperature and humidity, light intensity collection, etc., but it still cannot meet the needs of remote operation and maintenance and relay protection at the dispatching end, especially for devices. Requirements for diagnosis and analysis of the action behavior of internal protection components. [0003] On the other hand, with the further improvement of dispatching i...

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
IPC IPC(8): G01R31/00G01R31/08
Inventor 吴文瑕许捷郑玉平吴崇昊乔匡华裘愉涛潘武略王悦
Owner NARI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap