Intelligent substation and network communication security control method and device thereof

Abstract

The invention discloses an intelligent substation and a network communication security control method and device thereof. The control method comprises the following steps: acquiring a network communication message; when the network communication message enters the station, determining the type of the network communication message entering the station; when the network communication message entering the station is determined to be a service message according to the type of the network communication message entering the station, performing security auditing and abnormal auditing on the service message to obtain a normal message passing the security auditing and abnormal auditing; and performing integrity and repeatability auditing on the normal message, and performing data interaction processing on the compliance message passing the integrity and repeatability auditing. Therefore, according to the control method, data security processing is carried out on the data entering and exiting the intelligent substation, network data transmission security is guaranteed, meanwhile, the problem that data message delay exceeds the standard due to the fact that security strategies of external authentication equipment and security equipment are used is avoided, and it is guaranteed that data transmission meets the requirements of specifications and standards for data delay.

Description

technical field [0001] The present invention relates to the technical field of intelligent substations, in particular to a network communication security control method for intelligent substations, a computer-readable storage medium, an intelligent substation and a network communication security control device for intelligent substations. Background technique [0002] Smart substations use the IEC61850 standard for communication, which is the only global standard in the field of power system automation. It realizes the standardization of engineering operations of smart substations and makes the implementation of smart substations standardized, unified and transparent. The IEC61850 series of standards has 10 categories and 14 standards. It clearly defines the three-layer network structure of the station control layer, the interval layer and the network layer, and defines the communication interface between layers. Among them, the collection of data and the control of equipmen...

AI Technical Summary

Problems solved by technology

Among them, the collection of data and the control of equipment functions are all realized through network communication, so there are security risks such as network intrusion.

[0003] In related technologies, the communication of smart substation is based on TCP / IP network, which may be attacked by viruses and hackers with the network as the main transmission route, and most of the application systems of power information workstations use the Windows platform, and intelligent electronic devices (IEDs) in the station There is also no security core, and there are many potential safety hazards; secondly, application systems such as human-machine interface (HMI), control, maintenance, planning and construction can be directly connected to the station control layer network of the smart substation through the gateway, and directly access relevant information in the station

[0004] Therefore, both internal and external communications of smart substations are facing security threats, especially when smart substations are connected to public network communication facilities, they are more vulnerable to network attacks than relatively isolated and closed substation local area networks.

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