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

An operation and maintenance method for smart substation of AC/DC hybrid grid

A smart substation, AC-DC hybrid technology, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve problems such as the complexity of the opposite end system, and achieve the effect of good promotion significance and practical value

Active Publication Date: 2020-02-21
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The equipment in the station is more diverse, the peer system is more complex, and the realization of the protection function depends on the joint action of multiple devices

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
  • An operation and maintenance method for smart substation of AC/DC hybrid grid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Hereinafter, in conjunction with the accompanying drawings, a preferred embodiment is described in detail to further illustrate the present invention.

[0023] Such as figure 1 As shown, an operation and maintenance method for a smart substation in an AC / DC hybrid power grid includes the following steps:

[0024] S1, for the operation and maintenance equipment of the smart substation, establish an extended model of the operation and maintenance equipment;

[0025] S2, formulate rules for integrated merging unit, AC / DC stability control unit, switch intelligent unit and voltage merging unit based on expert system;

[0026] S3, execute the corresponding expert system strategy according to the rules of the integrated merging unit, AC / DC stability control unit, switch intelligent unit and voltage merging unit.

[0027] The operation and maintenance equipment includes AC / DC substation equipment, IED equipment and communication equipment.

[0028] The step S1 is specifically: establish...

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 an operation method of an intelligent substation of an alternating-direct current hybrid power grid. The operation method comprises following steps of S1, establishing an expansion model of an operation device of the intelligent substation; S2, making a rule based on a comprehensive combination unit, an alternating-direct current stability control unit, a switch intelligent unit and a voltage combination unit of an expert system; and S3, according to the rule of the comprehensive combination unit, the alternating-direct current stability control unit, the switch intelligent unit and the voltage combination unit, executing a corresponding expert system strategy. According to the invention, based on related concepts of a semantic net, logics between different concepts of an expert system knowledge library are quite clear and uniform; and through the established rule and strategy, an objective of improving expandability and practicability of the expert system knowledge library is achieved.

Description

Technical field [0001] The invention relates to the maintenance of a smart grid, in particular to an operation and maintenance method of an AC-DC hybrid grid smart substation. Background technique [0002] my country has fully entered the era of AC / DC hybrid power grids. Smart substations, as their hub nodes, play an important role in the overall balance of power grids. As of the end of 2015, about 5182 smart substations have been put into operation. The secondary systems of the smart substation are all encapsulated in the configuration description file (Substation Configuration Description, SCD), which brings great difficulties to the operation and maintenance of the substation. As early as 2011 and 2012, scholars proposed the use of expert systems to assist the operation and maintenance of smart substations, guiding and helping operators to quickly make accurate judgments about accidents and abnormalities, thereby improving the level and reliability of substation operation mana...

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): H02J13/00
CPCH02J13/0096H02J2203/20Y02E60/00Y04S10/16
Inventor 宋杰周健鲍伟沈冰潘爱强曾平周德生邹晓峰徐洁朱奕帆
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO