Abstract
We consider the gas transmission network operating on the territory of the Russian Federation. This network includes gas fields, gas consumers, nodal compressor stations, underground gas storages, which, depending on the given scenario of the system operation, can act as gas sources or gas consumers. The nodes are connected by means of gas pipelines. Because natural gas is used in heat and power engineering and electricity, the gas transmission network may be exposed to terrorist threats, and the actions of intruders may be directed both at gas production facilities and gas pipelines. To simulate intruders attacks, a model of the attacker-defender type was proposed. In this model, the defender, represented by the system operator, solves the problem of finding the maximum flow to meet the needs of gas consumers. The attacker, in turn, attempts to minimize the maximum flow in the gas transmission network by excluding either nodes or gas pipelines. Gas transmission networks in Russia and Europe are very extensive, ramified, and have many bridges and reserve gas pipelines. Therefore, to inflict maximum damage to the system, attacks on cliques, that is, on several interconnected objects, are modelled. The article presents the results of test calculations, in which we identify the most significant combinations of objects in the gas transmission network in terms of the potential threat from terrorist attacks.
Highlights
Ensuring an uninterrupted supply of fuel and energy resources to consumers and safeguarding overall energy security is a matter of high state concern [1]
The present study focuses mostly on the safe operation of the Russian gas transmission network in terms of security against terrorism
This study presents an approach to identifying critical combinations of facilities in the gas transmission network by solving the maximum clique problem
Summary
Ensuring an uninterrupted supply of fuel and energy resources to consumers and safeguarding overall energy security is a matter of high state concern [1]. Such cascade emergencies are possible, given the operational specifics of the gas transmission network This is why, to take a comprehensive and detailed account of various factors in researching critical facilities, this study uses the maximum clique problem aimed at detecting the most interconnected sections of the gas transmission network which, if disrupted, could inflict maximum damage to the network in terms of reduced gas supply to consumers. The present study focuses mostly on the safe operation of the Russian gas transmission network in terms of security against terrorism To this end, the authors will examine an attacker-defender model in which the solution of the attacker’s problem is based on maximum clique search. The authors sum up the main findings of the study
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