Information network attack-oriented vulnerability node evaluation method for power grid

Abstract

The invention discloses an information network attack-oriented vulnerability node evaluation method for a power grid. The method comprises the steps as follows: a topology frame of a physical power grid information system is generated; a frame model comprises all target states of a physical power grid system; information attack action position and way are constructed; and evaluation of the system vulnerability is carried out. According to the information network attack-oriented vulnerability node evaluation method for the power grid, the vulnerability in the physical power grid information system is analyzed by combining a malicious attack of an information network from a global viewpoint; the method disclosed by the invention is relatively objective and accurate; security defense opinions and suggestions are provided for grid companies and related departments; and information security and stable operation of a power transmission network and a power distribution network are ensured.

Description

technical field [0001] The invention relates to the field of power grid cyber-physical systems, in particular to a method for evaluating network security and grid vulnerability nodes. technical background [0002] With the rapid development of network technology and the massive reliance on real-time information and data for smart grid intelligent decision-making, the network security of ECPS has become a key factor restricting the development of smart grids. Many undiscovered security risks. In recent years, the major incidents of using the information network to attack the power grid system have caused widespread concern and concern. In order to cope with the increasingly severe power grid network security problems, various network security defense and control technologies for ECPS have been developed. Considering the complexity of the power grid, the wired network represented by power carrier communication and optical fiber communication and the wireless network represen...

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Problems solved by technology

[0003] Network security and information attacks based on power cyber-physical systems will have new impacts on the system, including faults that may cause line overload in the power grid, faulty action of relay protection, and false control of the PMU&SCADA system. The cascading failures will bring huge economic losses to production and life

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