Effect of voltage elevation on cost and energy efficiency of power electronics in water electrolyzers
Publiceringsår
2023
Upphovspersoner
Hysa Galdi; Ruuskanen Vesa; Kosonen Antti; Niemelä Markku; Aarniovuori Lassi; Guilbert Damien; Ahola Jero
Abstrakt
???????The interest in green hydrogen has been increasing in recent years for several applications, such as energy storage and different industrial sectors. The green hydrogen is produced from water electrolysis supplied by renewable electricity. The operation of industrial large-scale water electrolysis is characterized by a high DC current in the kiloampere range and a few hundred volts. Therefore, the rectifier unit plays an important role in converting AC current of the electricity grid into DC current supplied to the electrolyzer. The power electronic converters are also considered as one of the main cost components of the water electrolyzer system. The objective of this paper is to study whether the operation at a higher voltage than typical values (200 V–300 V) can be beneficial both for the cost and energy efficiency of the power converters in water electrolyzer systems. In this study, three different rectifier topologies considered for an industrial-scale electrolyzer are analyzed and compared in terms of energy efficiency and cost. The simulation models of each topology are carried out in the Matlab/Simulink environment.??????????????????????????????????????????
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Publikationstyp
Publikationsform
Artikel
Moderpublikationens typ
Tidning
Artikelstyp
En originalartikel
Målgrupp
VetenskapligKollegialt utvärderad
Kollegialt utvärderadUKM:s publikationstyp
A1 Originalartikel i en vetenskaplig tidskriftPublikationskanalens uppgifter
Öppen tillgång
Öppen tillgänglighet i förläggarens tjänst
Ja
Öppen tillgång till publikationskanalen
Delvis öppen publikationskanal
Parallellsparad
Nej
Övriga uppgifter
Vetenskapsområden
Övrig teknik och teknologi
Nyckelord
[object Object],[object Object],[object Object],[object Object]
Förlagets internationalitet
Internationell
Internationell sampublikation
Ja
Sampublikation med ett företag
Okänd
DOI
10.1016/j.jpowsour.2023.233108
Publikationen ingår i undervisnings- och kulturministeriets datainsamling
Ja