A network security detection system of electric power industrial control system based on "source network load"

Abstract

A network security detection method for electric power industrial control system based on "source network load". The main station layer controls the city layer, the substation layer and the user terminal layer. Detection equipment is installed in each layer except the user terminal layer to detect the operation of the network access equipment in the corresponding layer in real time, including access to the substation. The router, switch, vertical encryption equipment and load control terminal of the device will send the detected equipment abnormality back to the main station layer control center for processing, so as to ensure that the main station layer control center can remotely perform normal power-off / power-off operations for users.

Description

technical field [0001] The invention relates to the field of network security of an electric power industrial control system, in particular to a network security detection system for an industrial control system based on a source network load. Background technique [0002] The construction of Jiangsu power grid is becoming more and more perfect, and a huge "network" has been formed at present. Connected to this network are: power stations, transmission and distribution lines, transformer equipment, loads, etc. The 'net' is responsible for the transmission of electricity. The power grid structure of Jiangsu Province is developing towards the structure of "source network load". In "source network load", each user is regarded as a "load". The actual application performance is: each household is connected to the In the substation, two devices are installed between the user and the substation: 'encryption equipment' and 'load control switch'. The structure in the 'source netwo...

AI Technical Summary

Problems solved by technology

[0003] The current source, grid and load problems still exist. For example, due to the influence of abnormal UHV power transmission in Nanjing Power Grid, there is insufficient incoming power from outside the region. If certain measures are not taken, it may cause serious damage to important institutions, factories, schools, governments and other organizations In order to avoid these situations, the "network" needs to cut off the power of some users who have heavy loads and sign the load control agreement to ensure the safety of the entire large power grid. After the supply gradually stabilizes, the 'net' will gradually restore power to these users

In the whole process, there may be some uncontrollable situations, such as: the remote control switch is not connected to the network, the remote control switch is damaged, the command is interfered, the device is attacked, the device is aging, the device is illegally modified, etc.

If the above problems occur, it will lead to the inability to correctly cut off / power supply to the user load, which will easily lead to the power outage of the above-mentioned important organizational facilities, and the potential harm is relatively large.

Images