Micro-grid distributed synchronous detection method for false injection attack

Abstract

The invention relates to a micro-grid distributed synchronous detection method for a false injection attack, and belongs to the technical field of micro-grid operation control. The detection method comprises the specific steps of performing primary droop control and distributed secondary voltage reactive power control on the micro-grid, determining a detection signal of a distributed power supply, calculating a detection index according to a feedback function, and analyzing an abnormal index to detect a false data injection attack. The detection method is based on consistency control of a multi-agent system, is a distributed method, can adapt to delay and packet loss in a communication network, and has different sensitivities to attack signals.

Description

technical field [0001] The disclosure belongs to the technical field of micro-grid operation control, and specifically relates to a micro-grid distributed synchronization detection method for false injection attacks. Background technique [0002] With the depletion of the earth's resources and people's attention to environmental issues, the access to renewable energy has attracted more and more attention from all over the world. Microgrid is an emerging energy transmission mode that increases the penetration of renewable energy and distributed energy in the energy supply system, and its components include different types of distributed energy (including micro gas turbines, wind turbines, photovoltaics, fuel cells, energy storage equipment, etc.), user terminals of various electrical loads and / or thermal loads, and related monitoring and protection devices. [0003] The power supply inside the microgrid is mainly responsible for energy conversion by power electronic devices ...

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Problems solved by technology

[0004] However, a large number of sensing, measurement and control devices lacking effective security protection are connected to the microgrid. At the same time, third-party applications in the public communication network can flexibly access the information system of the microgrid to provide auxiliary services, which brings more potential for the information system of the microgrid. network attack access points, which increases the risk of information systems being attacked by malicious networks; there are many types of network attacks that affect microgrid network security, and false data injection attacks use state variables containing attack signals as measurement and communication information, seriously threatening However, under the premise of delay and packet loss in the communication network, it is difficult to detect whether the microgrid is attacked by false data injection

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