Intelligent power distribution network communication network planning method for resisting random attacks and deliberate network attacks

Abstract

The invention provides an intelligent power distribution network communication network planning method capable of resisting random attacks and deliberate network attacks, which can avoid large-range cascading faults caused by network attacks and mainly comprises the following steps of: (1) increasing a new node, and connecting the two nodes through two edges and a communication network; (2) attacking the communication network node through random attack and deliberate attack, removing a fault node corresponding to the power network, calculating power flow distribution, removing out-of-limit lines, returning power network fault information to the communication network to find the fault node, and repeating the process until cascading faults are stopped; and (3) calculating and recording the maximum communication subgraph number of the power network and a fitness function values corresponding to the characteristic path transformation quantity of the communication network, and finding out the best edge connection mode; and repeating the processes (1) and (2) until the node growth is finished. The main function of the method is to optimize distribution of edges in a communication networkin planning and prevent a blackout accident caused by the fact that a hacker attacks an electric power communication network.

Description

technical field [0001] The invention relates to a communication network planning method for an intelligent distribution network, in particular to a communication network planning method for an intelligent distribution network that resists random attacks and deliberate network attacks. Background technique [0002] With the vigorous investment and research of the power companies in the world, the smart grid has been vigorously developed. As an important part of the smart grid, the communication information system that coordinates with the primary network frame of the power network has been greatly promoted. Its network security problem is still very serious under the premise of the rapid development of smart grid. The power communication network is inevitably connected to the external network, which is closely coupled with the power physical network. The fault caused by a single communication network will evolve into a "communication-physical" cascading fault, which increases...

AI Technical Summary

Problems solved by technology

Both types of collaborative planning studies do not consider the fault propagation range of the communication network and the physical network, and a small fault in the planned network can easily evolve into a large-scale fault

[0005] To sum up, there is currently no distribution network planning method that can effectively defend against large-scale power outages caused by random attacks and deliberate network attacks in the communication network planning of smart distribution networks, which will lead to potential threats to the actual power grid. Security Risk

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