Power information physical system risk propagation analysis algorithm considering risk state propagation
A technology for power information and physical systems, applied in the field of risk propagation analysis algorithms for power cyber-physical systems, can solve the problem of in-depth analysis of the characteristics of risk propagation in different spaces and spaces, the in-depth analysis of the impact of risk propagation, and the lack of in-depth analysis of system structure characteristics. Issues such as risk propagation effects
Active Publication Date: 2019-03-08
ZHEJIANG UNIV
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Problems solved by technology
[0006] Disadvantage of existing technology 1: Existing research does not deeply analyze the characteristics of risks in different spaces and spatial propagation
[0007] Disadvantage 2 of the existing technology: none of the existing research deeply analyzes the influence of the structural characteristics of the system on the risk propagation
[0008] Disadvantage 3 of the existing technology: None of the existing researches deeply analyzed the impact of risk propagation on each device in the system
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[0063] The present invention will be further described below with reference to the drawings and embodiments.
[0064] The embodiment and the implementation process of the complete method according to the content of the present invention are as follows:
[0065] The first step: build as figure 2 The power information physical system model shown includes 3 information nodes and 3 power nodes. Among them, power nodes represent power equipment such as generators and transformers, and information nodes represent communication equipment such as controllers and sensors. The risk propagation path between each node is unknown and needs to be determined through the risk state propagation matrix.
[0066] Step 2: Under the known historical risk, after the system has experienced 4 risk propagations, the state of each node reaches a stable state. The state of each node after each risk propagation is shown in Table 1. Based on the optimization model and the historical risk state, The risk state...
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The invention discloses a power information physical system risk propagation analysis algorithm considering risk state propagation. The method comprises establishing a risk communication architecture,wherein the system is divided into power, power information and information space, risk communication is divided into information space, power space, power and information space between the risk communication, the space exists node; constructing risk propagation model and risk state propagation matrix, solving the risk state propagation matrix, obtaining the system risk state vector after different risk propagation under the risk, evolving the risk propagation process of each node until the risk propagation reaches a stable state, and the risk propagation ends; analyzing the impact of risk toidentify high-risk-sensitive nodes. The method of the invention solves the problem of analyzing the influence of the characteristics of the risk propagation in different spaces and spaces and the structural characteristics of the system on the risk propagation, quantifies the network structure of the electric power information physical system and the propagation path of the risk, reveals the riskchange process, and finds out the node with high risk sensitivity.
Description
Technical field [0001] The invention belongs to the field of calculation and analysis of spatial risk propagation of electric power cyber-physical systems, and specifically relates to an electric power cyber-physical system risk propagation analysis algorithm that considers the spread of risk states. Background technique [0002] In recent years, driven by the worldwide wave of energy conservation and emission reduction and the rapid development of information technology, the power system is undergoing profound changes. As the smart grid enters a mature development period, the power system will evolve to a new generation of power systems in terms of technical characteristics, and to the energy Internet in terms of functional form. The integration of power grids and other energy sources, energy systems and information systems has been accelerated in an unprecedented trend of unification. [0003] With the acceleration of the electrification process, the high proportion of new energ...
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Login to View More IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q50/06Y04S10/50
Inventor 胡怡霜丁一
Owner ZHEJIANG UNIV