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Direct current micro-grid attack detection and recovery method aiming at FDI attack

A DC microgrid, attack detection technology, applied in the direction of DC network circuit devices, electrical components, circuit devices, etc., can solve problems such as irrationality or limitations, achieve strong robustness, achieve recovery, and counteract FDI attacks. Effect

Pending Publication Date: 2022-05-13
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Most of the previous methods did not defend against FDI attacks from the perspective of passive defense, and the rest of the methods had irrationality or limitations in implementation

Method used

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  • Direct current micro-grid attack detection and recovery method aiming at FDI attack
  • Direct current micro-grid attack detection and recovery method aiming at FDI attack
  • Direct current micro-grid attack detection and recovery method aiming at FDI attack

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Embodiment Construction

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some, not all, embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the description of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0053] Such as figure 1 As shown, this embodiment provides a DC microgrid attack detection and recovery method for FDI att...

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Abstract

The invention discloses a DC micro-grid attack detection and recovery method for FDI attack, and the method comprises the steps: constructing a DC micro-grid model based on distributed two-layer control under network attack, constructing a controller based on a distributed sliding-mode observer, obtaining the input and output of the DC micro-grid model, and carrying out the detection and recovery of the DC micro-grid model. And obtaining an estimated attack signal in real time by using the distributed sliding-mode observer, and supplementing distributed two-layer control by using a compensation amount output by a controller based on the distributed sliding-mode observer when FDI attack occurs, thereby realizing bus voltage recovery and current output distribution. According to the invention, the influence of FDI attack can be counteracted, the recovery of bus voltage can be realized, and the accurate distribution of output current can also be realized.

Description

technical field [0001] This application belongs to the field of micro-grid security technology, and specifically relates to a method for detecting and recovering false data injection (FDI) attacks on DC micro-grids based on a distributed sliding mode observer, which can solve the problem of FDI attacks and improve the efficiency of micro-grids. security. Background technique [0002] The microgrid integrates renewable energy, energy storage systems and local loads to form a new power system with medium and low voltage and small scale. Compared with AC microgrids, DC microgrids can supply power more reliably and efficiently without generating reactive power, so they are more superior. In order to realize the energy management of distributed generation (DG), the mainstream control strategy of DC microgrid is a hierarchical control scheme composed of three-layer control network. The most common method of one-level control is the droop control method, and the current distribut...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F21/56H02J1/00G06F113/04
CPCG06F30/20G06F21/56H02J1/00G06F2113/04
Inventor 郭方洪郑祥康吴祥董辉陈博
Owner ZHEJIANG UNIV OF TECH