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Intrusion detection method and system based on IEC61850 SV message operation situation model

An IEC61850SV, intrusion detection technology, applied in transmission systems, calculation models, digital transmission systems, etc., can solve problems such as intelligent device error actions, master station error operation instructions, etc., and achieve the effect of solving limitations and inapplicability

Pending Publication Date: 2022-07-01
国网江苏省电力有限公司淮安供电分公司 +2
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Problems solved by technology

All kinds of measurement data in the digital substation are transmitted in plain text, which is easy to be modified or injected with illegal SV messages. Illegal substation measurement data will cause the master station to issue wrong operation instructions and cause errors in the smart devices of the digital substation. action

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  • Intrusion detection method and system based on IEC61850 SV message operation situation model
  • Intrusion detection method and system based on IEC61850 SV message operation situation model
  • Intrusion detection method and system based on IEC61850 SV message operation situation model

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[0048] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0049] The invention discloses an intrusion detection method and system based on the IEC61850 SV message running situation model. figure 1 to the attached Image 6 .

[0050] In the IEC61850 standard, the parameters of the continuously collected smart grid system are sent to the control center through the SV message message, and the sampled measurement value data message in the SV message message realizes the response to the overall operating status of the applied smart grid system. The data in the SV message message changes with events that occur in the smart grid network, such as load increases, loss of power generation, or failures. However, the changes of these data are not ar...

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Abstract

The invention relates to the technical field of intelligent power grid safety, and discloses an intrusion detection method and system based on an IEC61850 SV message operation situation model, and the method comprises the steps: collecting various measurement value data in an SV message at each position in an intelligent substation system in a certain time period, providing the data for a machine learning algorithm for training and learning, and employing a machine learning technology to achieve the intrusion detection of the SV message at each position in the intelligent substation system. And constructing a data compliance model of the power grid system based on an SV message measurement value by learning the power grid behavior of a normal SV data message. The data compliance model constructed by using the measured value data of the SV message is used for detecting the abnormal SV message of the IEC61850 system, and real-time detection of various intrusion behaviors is realized. Compared with the prior art, the method has the advantages that the limitation and the inapplicability of the IEC62351 in the actual use process are solved.

Description

technical field [0001] The invention relates to the technical field of smart grid security, in particular to an intrusion detection method and system based on an IEC61850 SV message running situation model. Background technique [0002] IEC61850 is an international standard for substation automation systems based on a common network communication platform, which can realize the 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 expenses of the substation automation system. [0003] The IEC61850 standard also makes the network form of the smart grid change from the closed system in the past to semi-closed and gradually open. This change process accelerates the process of intelligent substations, but al...

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Application Information

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IPC IPC(8): H04L9/40H04L69/22G06N20/00
CPCH04L63/1416H04L63/1425H04L69/22G06N20/00
Inventor 刘建戈李江成戴欣吕少岚张鹏宇
Owner 国网江苏省电力有限公司淮安供电分公司
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