PSR model based grid infrastructure vulnerability evaluation method

Abstract

The invention relates to a PSR model based grid infrastructure vulnerability evaluation method. The PSR model based grid infrastructure vulnerability evaluation method comprises the following steps of step 1, establishing evaluation indexes of a PSR model according to home and abroad grid infrastructure disaster statistics data, wherein the evaluation indexes comprise a hazard body, a hazard-bearing body and a relation between the hazard body and the hazard-bearing body; step 2, determining evaluation factors and evaluation indexes of the PSR model according to the evaluation indexes, wherein the evaluation factors comprise the pressure factor, the state factor and the response factor; step 3, establishing the PSR model of the grid infrastructure; step 4, obtaining the vulnerability evaluation level of the grid infrastructure through calculation according to the PSR model of the grid infrastructure and taking the corresponding strengthening measures according to the vulnerability evaluation level. Compared with the prior art, the algorithm is advanced, the consideration is comprehensive, the analysis is objective, and the like.

Description

technical field [0001] The invention relates to a method for assessing the vulnerability of grid infrastructure, in particular to a method for assessing the vulnerability of grid infrastructure based on a PSR model. Background technique [0002] The research on vulnerability first focused on the fields of nature, such as groundwater and ecosystems. Since the 1990s, a large number of studies on vulnerability have emerged, and this concept has been widely applied to many research fields, such as disaster management, ecology, public health, sustainability science, economics, etc., for large-scale systems There have also been many studies on the vulnerability of the computer network, such as computer network security, military logistics, complex technical systems and industrial production processes, etc. It is mainly used to describe that related systems and their components are susceptible to impact and damage, and lack the ability to resist interference and restore the initia...

AI Technical Summary

Problems solved by technology

[0016] Summarize the existing research methods on power system vulnerability analysis. The deterministic evaluation method often takes the most serious accident as the judgment standard, without considering the randomness of accidents and the complexity of the power grid, and the results obtained are conservative; The analysis method of transient energy margin ignores the physical constraints of the system; the method of complex network theory and directed weight graph similarly points out some important nodes in the system, lacks attention to other parts, and has no specific Give the possible loss of the system; based on the probability theory and risk analysis method, it does not take into account human subjective external factors

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