Optimization of Electricity Consumption by a Group of Monopolar Electrolysis Plants of the Same Type

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DOI https://doi.org/10.15407/pmach2025.03.062
Journal Journal of Mechanical Engineering – Problemy Mashynobuduvannia
Publisher Anatolii Pidhornyi Institute of Power Machines and Systems
of National Academy of Science of Ukraine
ISSN  2709-2984 (Print), 2709-2992 (Online)
Issue Vol. 28, no. 3, 2025 (September)
Pages 62-71
Cited by J. of Mech. Eng., 2025, vol. 28, no. 3, pp. 62-71

 

Authors

Dmytro A. Kotenko, Anatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine (2/10, Komunalnykiv str., Kharkiv, 61046, Ukraine), e-mail: dima.kotenko.96@gmail.com, ORCID: 0009-0006-7503-3837

Mykola M. Zipunnikov, Anatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine (2/10, Komunalnykiv str., Kharkiv, 61046, Ukraine), e-mail: zipunnikov_n@ukr.net, ORCID: 0000-0002-0579-2962

Olena O. Strelnikova, Anatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine (2/10, Komunalnykiv str., Kharkiv, 61046, Ukraine), e-mail: elena15@gmx.com, ORCID: 0000-0003-0707-7214

 

Abstract

Recently, more and more attention has been paid to environmental problems associated with excessive extraction of traditional energy resources. The transition to sustainable and renewable energy sources is becoming a key solution to overcome the depletion of natural resources and reduce the negative impact on the environment. One of the promising areas is the use of technology for obtaining hydrogen and oxygen through electrolysis. However, these days the mentioned technologies require large energy costs. Yet, in some of group operating modes, several electrolysis plants that operate simultaneously (in this paper, we are talking about monopolar electrolyzers with an active electrode) were used. At the same time, they might have a very negative impact on the elements of the electrical network that supplies this group of electrolysis plants. The optimization of the operation of a group of monopolar electrolysis plants of the same type in order to minimize their negative impact on the electrical network is considered in this paper. The results of the approximation of the function that describes the change in voltage for electrolysis with an active electrode, obtained from experimental data, using Fourier series were given. The optimization objective function was determined and the problem of finding the optimal sequence of starting a group of electrolysis plants was solved using stochastic methods. As a result of the calculations, it was established that the use of stochastic methods is appropriate, and based on the proposed solution, it is possible to create a prototype of a real control system for a group of similar electrolysis plants.

 

Keywords: electrolyzer, hydrogen, optimization, algorithm, function, current density.

 

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Received 08 March 2025

Accepted 20 June 2025

Published 30 September 2025