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

A method and device for alarming the pressure plate status of a busbar protection device in an intelligent substation

A technology for intelligent substation and busbar protection, which is applied in emergency protection circuit devices, measuring devices, measuring electricity and other directions, and can solve the problems of refusal and malfunction of protection devices

Active Publication Date: 2020-08-28
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +3
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the protection device focuses on the research on the protection principle and protection communication technology, and there are few researches on the operation and maintenance of the protection device. In view of the phenomenon of refusal and malfunction of the protection device caused by the misoperation of the pressure plate in the power system in recent years, this paper deliberately Aiming at the management of the pressure plate of the busbar protection device, a method of "intelligent detection and alarm logic for the state of the pressure plate of the busbar protection device of the intelligent substation" is proposed to improve the intelligent level of operation and maintenance of the intelligent substation

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
  • A method and device for alarming the pressure plate status of a busbar protection device in an intelligent substation
  • A method and device for alarming the pressure plate status of a busbar protection device in an intelligent substation
  • A method and device for alarming the pressure plate status of a busbar protection device in an intelligent substation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] This embodiment provides a method for alarming the status of the pressure plate of the busbar protection device of the intelligent substation:

[0055] Such as figure 1As shown, the receiving information of the intelligent substation bus protection device with double busbar, double busbar single section, and double busbar double section main wiring has information on the location of the busbar knife switch, and the busbar protection soft pressure plate has an interval receiving soft pressure plate and an interval protection tripping soft pressure plate , Interval start-up failure to drive into the soft pressure plate, where the interval receiving soft pressure plate refers to the SV receiving soft pressure plate of the interval branch. The method for judging the inconsistency of the pressure plate of the bus protection device in this operation mode is as follows:

[0056] Condition 1: Judging that the position of the interval knife switch does not correspond to the inte...

Embodiment 2

[0066] An intelligent substation bus protection device pressure plate status alarm device, the alarm device includes:

[0067] The platen inconsistency alarm input soft platen used to output the platen inconsistency alarm input signal;

[0068] Interval receiving soft pressure plate for outputting interval receiving signals;

[0069] I female knife switch position pressure plate for obtaining I female knife switch position pressure plate signal;

[0070] The position pressing plate of the II female knife switch for obtaining the signal of the position pressing plate of the II female knife switch;

[0071] Protection trip soft pressure plate for monitoring protection trip signal;

[0072] Start-failure switch-in soft press plate for outputting start-failure switch-in signal;

[0073] It also includes a first judging module and a second judging module;

[0074] The first judging module is used to perform "OR" operation on the output value of the I female knife switch positio...

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 method and a device for warning the state of a pressing plate of a bus protection device of an intelligent substation. The method judges whether the state of the pressing plate is inconsistent in two aspects: one aspect is based on information of an interval receiving soft pressing plate, the position of an interval disconnecting link, an interval protection tripping soft pressing plate, and an interval starting failure opening soft pressing plate; the other aspect is based on the non-correspondence of the interval protection tripping soft pressing plate, the interval starting failure opening soft pressing plate and the interval receiving soft pressing plate. The protection device comprises a warning module, a time delay module, a message transmitting module, a first judging module and a second judging module, and the first judging module and the second judging module are used for judging the states of the pressing plate in the two aspects and transmitting the warning information. The device can intelligently detect the abnormity of the withdrawal of the bus protection device, provide a message indicating the inconsistency of the states of the pressing plate, and remind operation and maintenance staff of maintaining in time.

Description

technical field [0001] The invention relates to the technical field of electric power operation and maintenance, in particular to a method and device for intelligent detection and alarm of the pressure plate state of an intelligent substation bus protection device, belonging to the technical field of electric power system relay protection technology. Background technique [0002] As a key link in the country's "smart grid" construction, smart substations have developed rapidly in recent years in the application of new technologies, the formulation and implementation of relevant norms and standards, and the scale of construction. With the implementation of the "four unifications" specifications for measurement and control devices and the "nine unifications" specifications for protection devices, the differences in the model files of measurement, control and protection devices from various manufacturers have been eliminated, and the intelligent detection and alarm logic for the...

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): G01R31/00H02H7/22
CPCG01R31/00H02H7/22
Inventor 韩伟李志坚张卓祖武强李晓航任忠华马伟东时晨乔利红
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST