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

Protection configuration system and method of intelligent substation

A technology of intelligent substation and protection configuration, applied in the direction of emergency protection circuit devices, circuit devices, information technology support systems, etc., can solve the problems of not reflecting the overall operation status of the power grid, lack of coordination and cooperation, etc., and achieve the improvement of relay protection performance and system The effect of safe and stable operation ability and shortened operating time

Active Publication Date: 2020-04-03
CHINA ELECTRIC POWER RES INST +2
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the traditional relay protection in the prior art only utilizes the electrical quantity and limited state quantity of the unit to complete the fault judgment, cannot reflect the overall operation status of the power grid, and lacks coordination and cooperation between each other, the purpose of the present invention is to provide A protection configuration method and system for an intelligent substation. The invention improves the insufficiency of the existing hierarchical system in-situ-station domain protection, and greatly improves the relay protection performance and the safe and stable operation capability of the system.

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
  • Protection configuration system and method of intelligent substation
  • Protection configuration system and method of intelligent substation
  • Protection configuration system and method of intelligent substation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The invention provides a protection configuration system for an intelligent substation, the structure diagram of which is as follows figure 1 Shown: including local compartment level and station domain protection control level, where:

[0048] The local interval level is used to obtain status information from the smart substation, perform local protection on the status information, and upload the status information obtained from the smart substation to the station domain protection control level;

[0049] The station domain protection control level is used to perform station domain protection control on the status information uploaded from the local bay level and the station domain information collected from the local bay level based on the action sequence logic.

[0050] Further: the in-place compartment level includes a first CPU and a second CPU:

[0051] The first CPU: used to obtain the primary side electric quantity of the electronic transformer or electromagneti...

Embodiment 2

[0075] Based on the same inventive concept, the present invention also provides a protection configuration method for a smart substation, the flow chart of which is as follows Figure 4 shown, including:

[0076] The local compartment level obtains status information from the smart substation, performs local protection on the status information, and uploads the status information to the station domain protection control level;

[0077] The station domain control level performs station domain protection control on the state information uploaded by the local bay level and the station domain information collected from the local bay level based on the action sequence logic.

[0078]Further: after the state information is obtained from the smart substation, it also includes:

[0079] The first CPU of the local bay level obtains the primary side electric quantity from the state information, and converts the primary side electric quantity into a secondary side electric quantity thr...

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 relates to a protection configuration system and method for an intelligent substation, and the system comprises an on-site interval stage which is used for obtaining state information from the intelligent substation, carrying out the on-site protection on the state information, and uploading the state information obtained from the intelligent substation to a substation area protection control stage; and the substation area protection control level which is used for performing substation area protection control on the state information uploaded by the on-site interval stage and the substation area information acquired from the on-site interval stage based on action sequential logic. Information based on the interval is considered in the on-site interval protection function configuration, and a protection function which is basically free of setting or less in setting is configured. The substation area realizes a protection control function of the whole station, substation area information is collected from the interval function unit, and the interval function unit and the substation area are configured in a duplex mode. The substation area protection monitors the on-site protection based on the action sequential logic, and shortens the action time of the traditional backup protection or failure protection and the like based on the conditions of misoperation, refusaland the like of the global information on the on-site protection.

Description

technical field [0001] The invention relates to a configuration technology of an intelligent substation, in particular to a protection configuration system and method for an intelligent substation. Background technique [0002] Traditional relay protection only uses the electrical quantity and limited state quantity of the unit to complete fault judgment, which cannot reflect the overall operation status of the power grid, and lacks coordination and cooperation with each other. The construction of a strong smart grid requires relay protection to improve its own performance, and it also needs to strengthen the sharing and interoperability of information between smart devices in substations. [0003] The process layer independently configures the main protection for the primary equipment, distributes it to the vicinity of the primary equipment, and finally integrates with the primary equipment. The sampling of protection is independent. The system completes the synchronization...

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): H02H7/22H02J13/00
CPCH02H7/22Y04S10/16Y04S10/20Y02E60/00
Inventor 李仲青李伟王兴国杜丁香郭雅蓉曹虹程琪
Owner CHINA ELECTRIC POWER RES INST