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Back-up protection processing method of digital substation transformer based on GOOSE mode

A processing method and backup protection technology, applied in the direction of electrical components, circuit devices, etc.

Active Publication Date: 2010-12-15
XUCHANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the current digital substation, the relay protection device is still set independently, and the fault judgment is made based on the local information, and there are various coordination and setting value setting problems in the backup protection

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  • Back-up protection processing method of digital substation transformer based on GOOSE mode
  • Back-up protection processing method of digital substation transformer based on GOOSE mode
  • Back-up protection processing method of digital substation transformer based on GOOSE mode

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Abstract

The invention discloses a back-up protection processing method of a digital substation transformer based on a GOOSE mode. When the inner part or the adjacent area of a digital substation has a fault, under the condition that the main protection information of a transformer is lacking, the invention provides a processing method in which different isolating layer protectors are used for sending and receiving fault direction information through GOOSE messages according to the relation between release and subscription and providing back-up protection for the transformer according to the logical judgment to together coordinately finish the back-up protection function of the transformer. The method of the invention can improve the reliability of relay protection of the digital substation and is beneficial to further development of the digital substation.

Description

technical field The invention belongs to the relay protection technology of electric power system, and in particular relates to a backup protection processing method of digital substation transformer based on GOOSE mode. Background technique The International Electrotechnical Commission (IEC) began to formulate a future-oriented substation communication standard - IEC61850 in 1995, and this standard has been officially released at present. With the continuous improvement of the IEC61850 protocol, the continuous development of digital equipment and network technology, digital substations have developed rapidly in our country. "Digital substation" refers to the complete digitization of the information collection, transmission, processing and output process of the primary electrical equipment and secondary electronic devices in the substation, and has a unified data modeling and data communication platform for the whole station. On the basis of this platform, intelligent Inter...

Claims

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Application Information

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IPC IPC(8): H02J13/00
Inventor 商建华封晓东孙强宇李丰王来军文明浩杜建波孙明马云龙杨新征李兵
Owner XUCHANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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