Parameter estimation algorithm for a PEM electrolyzer equivalent circuit model under current ripple conditions
Unknown parameter estimation for electrical models of proton exchange membrane (PEM) electrolyzers is important for optimal hydrogen production and storage in power systems. Algorithms for correctly identifying parameters for different models, including equivalent circuit models (ECM), have been rep...
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| Vydáno v: | Electric power systems research Ročník 251; s. 112324 |
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| Médium: | Journal Article |
| Jazyk: | angličtina |
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Elsevier B.V
01.02.2026
Elsevier |
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| ISSN: | 0378-7796, 1873-2046 |
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| Abstract | Unknown parameter estimation for electrical models of proton exchange membrane (PEM) electrolyzers is important for optimal hydrogen production and storage in power systems. Algorithms for correctly identifying parameters for different models, including equivalent circuit models (ECM), have been reported. These are important for analyzing the transient dynamics of the PEM electrolyzer connected to grid-tied power electronics sources. However, no method has been reported to correctly estimate the ECM parameters when subjected to current ripple from power electronics. Current ripple is an important issue requiring further investigations since they are responsible for the accelerated aging of electrolyzers. In this work, an algorithm has been developed to estimate the parameters of an ECM for the electrolyzer voltage under input current ripple. Furthermore, based on the gradient method, this algorithm allows adapting the parameters with the values of the proposed electronic components, i.e., resistors, capacitors, and voltage sources. The proposed algorithm has been validated using two voltage–current databases obtained from a commercial PEM electrolyzer system NMH2 1000. Thus, by efficiently estimating the ECM parameters, the proposed algorithm facilitates the design and construction of power converters coupled to the electrolyzer under current ripple constraints.
•ECM parameter estimation for the voltage of a PEM electrolyzer.•Analysis of the effect of current ripples on PEM electrolyzer.•Development of an algorithm to estimate parameters.•Estimation of activation and concentration voltages based on an equivalent circuit.•Application of the gradient method to the ECM under current ripple conditions. |
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| AbstractList | Unknown parameter estimation for electrical models of proton exchange membrane (PEM) electrolyzers is important for optimal hydrogen production and storage in power systems. Algorithms for correctly identifying parameters for different models, including equivalent circuit models (ECM), have been reported. These are important for analyzing the transient dynamics of the PEM electrolyzer connected to grid-tied power electronics sources. However, no method has been reported to correctly estimate the ECM parameters when subjected to current ripple from power electronics. Current ripple is an important issue requiring further investigations since they are responsible for the accelerated aging of electrolyzers. In this work, an algorithm has been developed to estimate the parameters of an ECM for the electrolyzer voltage under input current ripple. Furthermore, based on the gradient method, this algorithm allows adapting the parameters with the values of the proposed electronic components, i.e., resistors, capacitors, and voltage sources. The proposed algorithm has been validated using two voltage–current databases obtained from a commercial PEM electrolyzer system NMH2 1000. Thus, by efficiently estimating the ECM parameters, the proposed algorithm facilitates the design and construction of power converters coupled to the electrolyzer under current ripple constraints. Unknown parameter estimation for electrical models of proton exchange membrane (PEM) electrolyzers is important for optimal hydrogen production and storage in power systems. Algorithms for correctly identifying parameters for different models, including equivalent circuit models (ECM), have been reported. These are important for analyzing the transient dynamics of the PEM electrolyzer connected to grid-tied power electronics sources. However, no method has been reported to correctly estimate the ECM parameters when subjected to current ripple from power electronics. Current ripple is an important issue requiring further investigations since they are responsible for the accelerated aging of electrolyzers. In this work, an algorithm has been developed to estimate the parameters of an ECM for the electrolyzer voltage under input current ripple. Furthermore, based on the gradient method, this algorithm allows adapting the parameters with the values of the proposed electronic components, i.e., resistors, capacitors, and voltage sources. The proposed algorithm has been validated using two voltage–current databases obtained from a commercial PEM electrolyzer system NMH2 1000. Thus, by efficiently estimating the ECM parameters, the proposed algorithm facilitates the design and construction of power converters coupled to the electrolyzer under current ripple constraints. •ECM parameter estimation for the voltage of a PEM electrolyzer.•Analysis of the effect of current ripples on PEM electrolyzer.•Development of an algorithm to estimate parameters.•Estimation of activation and concentration voltages based on an equivalent circuit.•Application of the gradient method to the ECM under current ripple conditions. |
| ArticleNumber | 112324 |
| Author | Martinez-Rodriguez, Panfilo R. González-Aguilar, Hernán Saldivar, Belem Hernández-Gómez, Ángel Langarica-Cordoba, Diego Guilbert, Damien |
| Author_xml | – sequence: 1 givenname: Ángel orcidid: 0000-0002-5041-0716 surname: Hernández-Gómez fullname: Hernández-Gómez, Ángel email: angel.hernandez@uaslp.mx organization: School of Sciences, Universidad Autónoma de San Luis Potosí (UASLP), San Luis Potosí, 78295, San Luis Potosí, Mexico – sequence: 2 givenname: Diego orcidid: 0000-0002-9077-6931 surname: Langarica-Cordoba fullname: Langarica-Cordoba, Diego email: dlangaricacordoba@utep.edu organization: Department of Electrical and Computer Engineering, The University of Texas at El Paso, TX 79968, USA – sequence: 3 givenname: Panfilo R. orcidid: 0000-0002-9613-805X surname: Martinez-Rodriguez fullname: Martinez-Rodriguez, Panfilo R. email: pamartinez@ieee.org organization: School of Sciences, Universidad Autónoma de San Luis Potosí (UASLP), San Luis Potosí, 78295, San Luis Potosí, Mexico – sequence: 4 givenname: Hernán orcidid: 0009-0005-3781-8492 surname: González-Aguilar fullname: González-Aguilar, Hernán email: hernan@fc.uaslp.mx organization: School of Sciences, Universidad Autónoma de San Luis Potosí (UASLP), San Luis Potosí, 78295, San Luis Potosí, Mexico – sequence: 5 givenname: Damien orcidid: 0000-0003-4662-3185 surname: Guilbert fullname: Guilbert, Damien email: damien.guilbert@univ-lehavre.fr organization: GREAH, Université Le Havre Normandie, 76600 Le Havre, France – sequence: 6 givenname: Belem orcidid: 0000-0002-5150-8635 surname: Saldivar fullname: Saldivar, Belem email: belem.saldivar@cinvestav.mx organization: Department of Automatic Control, CINVESTAV-IPN, Av. Instituto Politécnico Nacional 2508, Mexico City 07360, Mexico |
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| Cites_doi | 10.1016/j.ijhydene.2023.07.172 10.1109/TPEL.2006.890008 10.3389/fenrg.2024.1358333 10.1039/D3EY00193H 10.1109/ACCESS.2024.3358456 10.1016/j.renene.2020.09.106 10.1016/j.rser.2023.113883 10.3390/membranes12020109 10.1016/j.ijhydene.2024.02.167 10.1016/j.ijhydene.2023.05.031 10.1016/j.epsr.2024.110740 10.1016/j.jclepro.2020.121184 10.1016/j.ijhydene.2020.03.195 10.1016/j.epsr.2021.107374 10.1016/j.joule.2024.02.012 10.1016/j.epsr.2024.111213 10.1016/j.ijhydene.2019.01.186 10.1016/j.electacta.2020.137199 10.1016/j.epsr.2024.110378 10.1016/j.ijhydene.2020.04.182 10.1016/j.est.2017.05.015 10.1016/j.epsr.2024.110963 |
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| Keywords | Electrolyzer modeling Parameter estimator PEM electrolyzer Equivalent circuit model |
| Language | English |
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| SubjectTerms | Electric power Electrolyzer modeling Engineering Sciences Equivalent circuit model Parameter estimator PEM electrolyzer |
| Title | Parameter estimation algorithm for a PEM electrolyzer equivalent circuit model under current ripple conditions |
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