Risk Propagation Analysis Algorithm for Power Cyber-Physical Systems Considering Risk State Propagation
A technology of electric power information and physical systems, applied in the field of risk propagation analysis algorithms of electric power information physical systems, can solve the problem of not in-depth analysis of the characteristics of risk propagation in different spaces and spaces, without in-depth analysis of the influence of risk propagation on system structural characteristics, and without in-depth analysis Issues such as risk communication impact
Active Publication Date: 2021-01-08
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 in conjunction with drawings and embodiments.
[0064] The embodiment and implementation process thereof implemented according to the complete method of the content of the present invention are as follows:
[0065] Step 1: Build as figure 2 The power cyber-physical system model shown contains 3 information nodes and 3 power nodes. Among them, power nodes represent power equipment such as generators and transformers, and information nodes represent communication devices 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 has reached 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 ...
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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 information physics systems, and in particular relates to a risk propagation analysis algorithm of electric power information physics systems considering risk state propagation. Background technique [0002] In recent years, driven by the wave of energy saving and emission reduction worldwide 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 system in terms of technical characteristics, and will evolve to the energy Internet in terms of functional form. The integration of power grid and other energy sources, energy systems and information systems is accelerating in an unprecedented unified trend. [0003] With the acceleration of the electrification process, the high proportion of ne...
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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q50/06Y04S10/50
Inventor 胡怡霜丁一
Owner ZHEJIANG UNIV