A Defense Response Method for Moving Targets Guided by Economic and Security Requirements

Abstract

The invention discloses a mobile target defense response method guided by economic and safety requirements, which is characterized by comprising: S01, main data collection of the system; S02, preprocessing of the collected data; S03, detection of demand action amount; S04 , periodic work action; S05, initial action strategy; S06, detection strategy check; S07, attack volume detection; S08, security plan; S09, defense strategy generation; S10, power grid operation constraint detection; S11, strategy implementation; S12, attack volume detection. In this method, the safety requirements are added to the periodic power flow adjustment made by the D‑FACTS equipment due to the economic needs of the power grid itself, and the line parameters related to vulnerable nodes are appropriately changed without affecting the operating state of the power grid itself to detect bad data. When abnormal data is detected, according to the security plan, the D‑FACTS equipment will enter a more comprehensive and larger response state, and under the premise of ensuring economical efficiency, it can quickly and effectively determine whether there is an FDI attack in the system.

Description

technical field [0001] The invention relates to the technical field of power grid attack detection, in particular to a method for responding to a flexible AC transmission system in defense of moving targets guided by economic and security requirements. Background technique [0002] Since False Data Injection Attack (FDIK) against power systems was proposed, scholars have done a lot of research in this field, and in recent years, information attacks against industrial control systems represented by power grids have occurred frequently. How to meet the requirements of the system to deal with information attacks on the premise of ensuring the normal operation of the industrial control system is one of the hot issues in the field of industrial control system research. [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 to achieve proactive network defense, among t...

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