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Moving target defense dynamic response strategy generation method based on abnormal traffic

A mobile target defense and abnormal traffic technology, applied in the field of dynamic response strategy generation for mobile target defense based on abnormal traffic

Active Publication Date: 2020-05-15
STATE GRID SHAANXI ELECTRIC POWER RES INST +2
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Problems solved by technology

[0007] The purpose of the present invention is to provide a dynamic response strategy generation method for moving target defense based on abnormal traffic, which is used to solve the problem of dynamic strategy generation of D-FACTS equipment when applying MTD technology to deal with FDI attacks in the power grid, and quickly and effectively While defending against FDI attacks, ensure the least impact on power grid operation, and solve the dynamic optimal strategy problem when MTD technology is applied to power grid information security issues

Method used

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  • Moving target defense dynamic response strategy generation method based on abnormal traffic
  • Moving target defense dynamic response strategy generation method based on abnormal traffic
  • Moving target defense dynamic response strategy generation method based on abnormal traffic

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[0088] figure 2It is the system structure diagram of the IEEE-9 node standard power system test case. The system includes 9 nodes, of which nodes 1, 2, and 3 are power generation nodes, and nodes 5, 7, and 9 are load nodes. There are 9 branches between the nodes. , the node 1 and the node 4, the node 2 and the node 8, and the node 3 and the node 6 are connected through a transformer.

[0089] The control center can control the on-off of each branch in the system, as well as the working conditions of each generator. Under normal operation, all generators in the system are in the open state. False control commands, for example, an attacker sends a control command to turn off the generator on node 2. When the generator receives the command, it will respond to it, which may cause damage to the operating state of the system.

[0090] In the MATPOWER environment, a physical response model of the power system is constructed according to the connection structure, electrical paramete...

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Abstract

The invention provides a moving target defense dynamic response strategy generation method based on abnormal flow, and the method is specifically characterized in that the method comprises the steps:S01, data collection; S02, data processing; S03, node state estimation; S04, abnormal node detection; S05, inputting abnormal node data; S06, calculation of the adjustment capability of each line fordifferent nodes; S07, generation of a defense strategy; S08, checking of the defense strategy for the first time; S09, secondary inspection on the defense strategy; and S10, defense strategy output. For FDI attack, the detection capability of each line on abnormal data of different nodes is analyzed after deploying flexible alternating current transmission equipment (D-FACTS) equipment, accordingto the method, the real-time abnormal condition of the node flow is taken as the configuration weight of the detection capability, the dynamic configuration strategy which has the strongest detectioncapability on the current abnormal flow node data and has the minimum FACTS adjustment on the power grid operation is constructed, and the problem of the dynamic response strategy when the MTD technology is used for detecting the FDI attack is solved.

Description

technical field [0001] The invention relates to the technical field of power grid attack detection, in particular to a method for generating a dynamic response strategy for moving target defense based on abnormal traffic. Background technique [0002] Since the False Data Injection Attack (FDIK) for power systems was proposed, scholars have done a lot of research in this field, and in recent years, information attacks on industrial control systems represented by power grids have occurred frequently. How to meet the requirements of the system to deal with information attacks under the premise of ensuring the normal operation of the industrial control system is one of the hot issues in the current research field of industrial control systems. [0003] Aiming at the common problem of current network security - easy to attack and difficult to defend, the "game-changing" technology proposed by the United States can achieve proactive network defense, among which Moving Target Defe...

Claims

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00
Inventor 陈伟高宇王稼舟鲍远义刘烃
Owner STATE GRID SHAANXI ELECTRIC POWER RES INST
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