Русская версия English version

Formalization of thermodynamic processes in automated electric drives of compressor units

A.R. Kolganov, O.V. Kryukov, A.V. Saushev

Vestnik IGEU, 2026 issue 3, pp. 68—76

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Abstract in English: 

Background. The main causes of emergencies at compressor stations of main gas pipelines are overheating of stator windings of drive electric motors of centrifugal turbo-compressors. This phenomenon occurs due to the fact that the operation of all electric motors at compressor stations is based on simplified general industrial models that do not take into account the entire gamut of stochastic disturbances and frequent operation in suboptimal modes. This leads to a decrease of the expected indicators of energy efficiency and reliability, significantly affecting the number of violations of regulatory technical requirements for operation. Therefore, an urgent task is to develop scientifically substantiated models of the functioning and adaptation of the operation of powerful automated electric drives at compressor stations.

Materials and methods. The basis of the formalization of thermodynamic processes in powerful synchronous machines is the theory of experimental planning and the three-stage theory of heating based on the physics of the process of heating of synchronous motor as a system consisting of three thermally interconnected bodies.

Results. A mathematical model of a powerful electric motor with a fan load has been proposed. It makes possible to increase the accuracy of identification of thermodynamic processes in an automated electric drive of gas pumping units. Due to this, the adequacy of the assessment of the reliability and energy efficiency of trunk gas pipelines is ensured and all parameters of the pumped gas transmission system are stabilized at the optimal level.

Conclusions. The use of a formalized approach to modeling processes in powerful electrical drives of the compressor station based on a three-stage heating theory makes it possible to take into account and compensate all external disturbances and stabilize the operation of the main gas pipeline at a theoretically reasonable optimal level according to energy criteria.

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Key words in Russian: 
газоперекачивающий агрегат, автоматизированный электропривод, теория нагрева, инвариантная система, термодинамические процессы
Key words in English: 
gas pumping unit, automated electric drive, heating theory, invariant system, thermodynamic processes
The DOI index: 
10.17588/2072-2672.2026.3.068-076
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