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

Abstract

The article is devoted to the search and determination of the most important combinations of gas industry objects from the standpoint of system operability. The study was carried out on the example of the Unified Gas Supply System of Russia. The study is a development of the topic of the search and determination of critical objects of the system. Cases of simultaneous failure of two disconnected and independent from each other system objects are possible. The article presents a list of the most important combinations of gas industry objects that are not included in the list of critical objects, failure of which can lead to a significant gas shortage among consumers. Their significance and impact on the performance of the Russian gas industry are shown. Conclusions have been drawn on the feasibility of searching for such paired combinations of gas industry objects from the standpoint of system operability.

Comparative efficiency of application of the maximum clique method in searching for critically important objects of the gas industry

“…Secondly, gas deficiencies arising from the occurrence of cliques found from the composition, reducing the gas deficit arising from the emergence from the totality of system compounds and their combinations [12,15].…”

“…The results of calculations of applications of the results of previous studies, performed by various methods, models of element-by-element enumerations [12,15], methods for determining synergistic effects [13].…”

“…A list of intersections of main gas pipelines in the Unified Gas Supply System of Russia has been determined, the disruption of which will lead to a relative shortage of daily gas supplies throughout the system as a whole in the amount of 5% or more [11]. Studies have been carried out to search for and determine combinations of individual sections of main gas pipelines, the simultaneous disruption of which can lead to a significant shortage of daily gas supplies through the system (5% or more) [12,13]. Studies have been carried out to determine critically important objects in the electric power industry [14].…”

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

“…Taking into account the previously obtained 61 critical objects and 630 pairs of critical combinations, calculations were carried out for the pairwise disconnection of all other objects of the design scheme, followed by "uncovering" bottlenecks -by taking measures aimed at minimizing gas shortages among consumers. These calculations were carried out using a software package [24] that reflects in detail the functioning of the Russian gas transmission network and allows simulating various conditions for the functioning of its facilities, including a complete shutdown. The calculations were carried out using the parallel computation methodology in [25].…”