Search of critically important objects of the gas industry with the method of determining critical elements in networks of technical infrastructures

Abstract

Abstract. The paper shows the application of the method of determining critical elements in the networks of technical infrastructures in the search and analysis of the importance of critical gas industry facilities. The purpose of this method is to search for critical elements and sets of elements in network infrastructures and their ranking by importance. The paper presents an adaptation of the method for determining critical elements in networks of technical infrastructures for the model of gas supply system functioning, which consists in describing the response of the gas supply system to the failure of a single element or a group of them. Conclusions are made about the expediency of using this method in research into the search for critical gas industry objects and determining their significance.

Methodology for determining critically important objects of energy systems from positions of ensuring energy security

“…The application of the method for determining critical elements in the networks of technical infrastructures in the search for critical objects clearly shows that the disruption of the functioning of several unconnected sections of the main gas pipelines, as well as the disruption of the functioning of the intersection of the main gas pipelines, will most likely cause more harm to the system than the disruption of the functioning of one section of the main gas pipelines. Taking this fact into account, we can talk about the greater importance of the sections of main gas pipelines as critical objects with a high value of the criticality index [23].…”

“…This problem can be solved by finding the maximum flow through the network, followed by minimizing the cost of gas delivery to consumers [16]. The mathematical formulation of this problem is described in [17].…”

Search of the most important combinations of gas industry objects from the positions of system operability

“…A list of crossings of main gas pipelines in the Unified Gas Supply System (UGSS) of Russia has been defined, the disruption of which will lead to a relative deficit of daily gas supplies through the system as a whole of 5% or more [13,14]. Studies have been conducted to search for and determine combinations of individual sections of the main gas pipelines, the simultaneous disruption of which can lead to a significant shortage of daily gas supplies through the system (5% or more) [15,16].…”

Search for ways of reconstruction of the gas transportation network to reduce gas deficits in consumers in emergencies in the gas industry

“…A list of crossings of gas pipelines in the Unified Gas Supply System of Russia has been determined, the disruption of which will lead to a relative deficit of daily gas supplies through the system as a whole in the amount of 5% or more [13]. Studies were carried out to search for and determine the combinations of individual sections of main gas pipelines, the simultaneous disruption of the functioning of which can lead to a significant shortage of daily gas supplies through the system (5% or more) [14,15]. Taking into account the previously gained experience and based on the analysis of research carried out in the world at present, in [16,17], a methodology for the formation of lists of critical objects of energy systems from the standpoint of ensuring the operability of these systems is formulated on the example of the gas industry in Russia.…”