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A method of intrusion detection for IEC61850 digital substation goose message

A technology of IEC61850, digital substation

Active Publication Date: 2020-10-20
国网江苏省电力有限公司淮安供电分公司 +3
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  • Application Information

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Problems solved by technology

[0007] The present invention provides a method for realizing intrusion detection of GOOSE messages in IEC61850 digital substations, and aims to solve the problem that the security reinforcement of GOOSE messages in the IEC61850 standard in the prior art usually cannot pass the encryption and digital verification of IEC62351 in practical applications method to complete

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  • A method of intrusion detection for IEC61850 digital substation goose message
  • A method of intrusion detection for IEC61850 digital substation goose message
  • A method of intrusion detection for IEC61850 digital substation goose message

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Embodiment Construction

[0023] The invention provides a safety detection method for GOOSE messages used to transmit control and signals between intelligent devices (IEDs) in an IEC61850 digital substation, and the invention can quickly detect various GOOSE communication messages with potential safety hazards .

[0024] Depend on figure 1 , 2 It can be seen that the communication protocol stack of GOOSE service is composed of application layer, presentation layer, data layer, link layer and physical layer, and the session layer, transport layer and network layer are all empty. In this way, the length of the message can be shortened, the transmission delay can be reduced, and the requirement of real-time data transmission can be met. The application layer defines the application protocol unit (APDU) of the IEC61850-GOOSE message, the presentation layer encodes the APDU according to ASN.1 BER, and the data link layer sets the transmission priority of the message based on the ISO / IEC8802-3 standard. t...

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Abstract

The invention discloses an intrusion detection method of an IEC61850 digital substation GOOSE message. The method is mainly composed of three steps: GOOS message fast filtering and data structuring; GOOSE message multilevel association detection, and GOOSE message hazard assessment. The invention provides a realization method of intrusion detection on the IEC61850 digital substation GOOSE message, and aims at solving a problem that the safety reinforcing of the GOOSE message in the IEC61850 standard in the prior art usually cannot be accomplished through the encryption and digital verification method of the IEC62351 in an actual application.

Description

technical field [0001] The present invention belongs to the field of IEC61850 digital substation safety, adopts the message template matching technology to complete the structural presentation and restoration of GOOSE data packet data, and realizes a kind of GOOSE data in the IEC61850 intelligent substation through the context multi-level correlation analysis technology of message data items Packet intrusion detection method. Background technique [0002] IEC61850 is an international standard for substation automation systems based on a common network communication platform, which can realize interoperability and protocol conversion of substation automation system products. Adopting the IEC61850 standard can make the substation automation equipment have the characteristics of self-description, self-diagnosis and plug-and-play, which greatly simplifies the integration of the digital substation system and reduces the cost of the substation automation system. [0003] The IEC6...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/1416H04L63/1425
Inventor 刘建戈吕兵罗坤金鑫
Owner 国网江苏省电力有限公司淮安供电分公司
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