期刊名称：Bulletin of the Institute of Heat Engineering
印刷版ISSN：2083-4187
出版年度：2016
卷号：96
期号：3
页码：170-177
语种：English
出版社：Warsaw University of Technology
摘要：A smart grid is a kind of energy cyber-physical system (ECPS) with the interdependency of information and physicality. A cyber-attack gravely threatens the safe and stable operation of a physical power grid. Cyber-security reinforcement of smart grid has become a research issue. However, the information network scale of a smart grid is massive, and the generation of security reinforcement strategies has become a problem. Therefore, a generation method of security reinforcement strategies based on an attribute-based attack graph was proposed in this study. The method defined a smart grid based on premise and consequence attributes to form an attribute-based attack graph. With this graph, the method for the generation of security reinforcement strategies was transferred to the minimum dominating set of the attribute-based attack graph and solved to realize space reduction in the security reinforcement strategies. An algorithm for the generation of security reinforcement strategies was designed based on the greedy algorithm, and strategies for large-scale cyber security reinforcement of the smart grid were determined to eliminate the complexity and difficulty of this problem effectively. Through a simulation analysis of a large-scale node network, the efficiency of the generation method of reinforcement strategies based on the attributebased attack graph and minimum dominating set was verified. Results show that the proposed method can be used for security reinforcement of large-scale complicated networks of a smart grid.
