Thermal power plant control system information safety evaluation system based on SA-PSO-AHP

Abstract

The invention relates to a thermal power plant control system information safety assessment system based on SA-PSO-AHP. The system comprises a data input module used for obtaining the scoring data ofa to-be-assessed control system; a matrix building module used for pre-storing a threat evaluation layered progressive model of the control system built by utilizing an analytic hierarchy process, andthe model is combined with the scoring data input by the data input module to build an evaluation matrix; a matrix correction module used for carrying out consistency judgment on the evaluation matrixes and carrying out consistency correction on the evaluation matrixes which do not meet the consistency standard by utilizing a simulated annealing optimization particle swarm algorithm; and a data output module used for obtaining a threat sequence of the power plant control system by utilizing a hierarchical algorithm and obtaining a comprehensive threat score in combination with the threat frequency. Compared with the prior art, the fuzziness of the evaluation elements and the process can be fully reflected. The influence caused by personal subjective factors is reduced. An objective and sufficient evaluation result is better obtained.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to an SA-PSO-AHP-based thermal power plant control system information security evaluation system. Background technique [0002] Thermal power plants are the center of gravity in the energy field, and the information security of their industrial control systems has become particularly important. With the continuous advancement of information construction by enterprises, the degree of informatization has gradually increased, the connection between control systems and enterprise management systems has become closer and closer, the openness of the system has been continuously improved, and various general information products and technologies have been introduced into the system, such as Ethernet The scope of application of network technology and commercial operating systems in control systems continues to expand, which is manifested in the increasing dependence of power sy...

AI Technical Summary

Problems solved by technology

[0004] Existing evaluation methods and systems generally use Markov decision theory, fuzzy mathematics theory, etc. to analyze only quantifiable indicators related to decision-making issues, so it is difficult to judge and comprehensively evaluate qualitative factors such as assumptions and implementation suggestions. There are problems of strong subjectivity and uncertainty, and it is impossible to obtain objective and accurate security assessments

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