DSpace Repository

Analysis of grid interfaced power converter for uninterrupted hydrogen production using PEM electrolyzer

Show simple item record

dc.contributor.author Verma, Saket
dc.date.accessioned 2025-10-18T04:40:16Z
dc.date.available 2025-10-18T04:40:16Z
dc.date.issued 2025-07
dc.identifier.uri https://www.sciencedirect.com/science/article/pii/S0360319925032537
dc.identifier.uri http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/19822
dc.description.abstract Phase-shift full bridge (PSFB) converter is widely used for high-power applications in battery charging, and data centers. However, it also has a strong application for the electrolyzer system to produce hydrogen. But, in this condition, the supply power factor can be distorted due to the nonlinearity of the electrolyzer-interfaced power circuitry. Further, the electrolyzer operates relatively at a lower voltage and higher ripple-free current for its prolonged operation. Therefore, the PSFB converter can be integrated with the interleaved buck (IB) converter that has an almost steady current at its output terminal. In this study, a three-stage power converter is proposed to connect the electrolyzer with the single-phase utility grid. In the first stage, the Vienna rectifier is utilized to connect the single-phase utility grid to the electrolyzer via the cascaded PSFB-interleaved buck converter. The utility grid operates the electrolyzer and exhibits the unity power factor operation, therefore, better power quality can be ensured. Moreover, the modeling and control of the proposed configuration of the cascaded PSFB-IB power converter have been performed. As there are many active switches in the proposed converter circuit, they can be subjected to open-circuit/short-circuit faults. The faulty operation of the power converter can stop the hydrogen production leading to catastrophic failure of the complete system. Therefore, an analysis of the fault-tolerant operation of the studied cascaded converter configuration has also been performed. After the open circuit/short circuit fault occurs in any switch of the PSFB converter, the converter still operates in the symmetric half-bridge configuration, to guarantee the hydrogen as well as oxygen production. For two electrolyzer units of each rating 0.72 kW, the hydrogen and oxygen production rates are maintained at ≈ 354 L/h and ≈177 L/h, respectively under the no-fault as well as in faulty condition. The simulation of the proposed circuit is performed using the OPAL-RT OP4610 XG real-time simulator en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Mechanical engineering en_US
dc.subject DC-DC converter en_US
dc.subject Fault-tolerant en_US
dc.subject Hydrogen production en_US
dc.subject Photovoltaic en_US
dc.subject PEM electrolyzer en_US
dc.title Analysis of grid interfaced power converter for uninterrupted hydrogen production using PEM electrolyzer en_US
dc.type Article en_US


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Advanced Search

Browse

My Account