System and method for analysis and early warning of substation network security

Abstract

The invention mainly discloses a system and a method for the analysis and the early warning of the substation network security based on a network message recording and analyzing instrument. The system comprises a network message recording and analyzing instrument, a communication module, secondary equipment, switches and a secondary equipment on-line monitoring and intelligent diagnosis system. The secondary equipment and the switches are arranged on each of all substation network layers respectively. The method for the analysis and the early warning of the substation network security is conducted based on the above system. The method comprises the steps of recording all massages of a dispatching data network, a station-level network and a process-level network in a substation by the above network message recording and analyzing instrument; analyzing and diagnosing the massages, generating an analysis file according to the diagnosed abnormal alarm, and reporting hidden troubles to the related operation and maintenance personnel by the scheduling and operating personnel at the substation according to the incidence report of the network security so as to eliminate the hidden troubles. The above system and method can be used for monitoring all substation network layers to rapidly realize the analysis and the early warning of network security problems that might influence the stable operation of the substation and timely eliminate potential security hazards. Therefore, the network environment of the substation is ensured to be safe and clean.

Description

technical field [0001] The invention relates to network security, in particular to a substation network security analysis and early warning system and method. Background technique [0002] In substations, especially smart substations, traditional cables have been replaced by networks. Whether it is an optical fiber network or an electrical Ethernet network, it builds a bridge for communication between all secondary equipment in the substation, and shoulders the mission of safe and stable operation of the substation. While the Internet is changing with each passing day, network security is getting more and more attention. In order to ensure the network security of the power system, various firewalls and encryption devices have been widely used, which mainly solve the network security problem of accessing the dispatching data network outside the substation to the substation, and achieve the isolation of the network inside and outside the substation. However, once the local a...

AI Technical Summary

Problems solved by technology

However, it does not support sending relevant information, and it is impossible to realize network security analysis and early warning

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