Modelling and Operation of 6-Pulse Thyristor Rectifiers for supplying High Power Electrolyzers

Iribarren, Alvaro; Barrios, Ernesto L.; Ibaiondo, Harkaitz; Sanchez-Ruiz, Alain; Arza, Joseba; Sanchís, Pablo; Ursúa, Alfredo

doi:10.1109/compel53829.2022.9829992

Cited by 2 publications

References 10 publications

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Asymmetrical firing angle modulation for 12-pulse thyristor rectifiers supplying high-power electrolyzers

Iribarren,

Barrios,

Elizondo

et al. 2023

2023 IEEE 32nd International Symposium on Industrial Electronics (ISIE)

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This paper presents an asymmetrical firing angle modulation strategy for 12-pulse thyristor rectifiers aimed at supplying high-power electrolyzers, which allows to reduce the size of the passive filter and the static compensator (STATCOM) required to comply with grid harmonic regulations and achieve unity power factor. Usually, 12-pulse thyristor rectifiers follow a symmetric modulation strategy in which the same firing angle is applied to both 6-pulse bridges. In this case, large passive ac-side inductances are required to reduce grid current harmonics, which increase the reactive power consumption and thus the required STATCOM size. However, this paper demonstrates that by applying different firing angles to the two 6-pulse bridges it is possible to comply with the harmonic regulation limits using smaller filtering inductances and therefore reducing the STATCOM size. The methodology to find the optimal firing angle values that should be applied in order to minimize the filtering inductance and the STATCOM size for a given electrolyzer is explained. This strategy is validated by simulation, and results show that the required filtering inductance and the apparent power of the STATCOM can be effectively reduced by 62% and 31%, respectively, using this asymmetrical firing angle modulation.

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Asymmetrical firing angle modulation for 12-pulse thyristor rectifiers supplying high-power electrolyzers

Iribarren,

Barrios,

Elizondo

et al. 2023

2023 IEEE 32nd International Symposium on Industrial Electronics (ISIE)

View full text Add to dashboard Cite

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A Comprehensive Review on the Power Supply System of Hydrogen Production Electrolyzers for Future Integrated Energy Systems

Lei,

Ma,

Qin

et al. 2024

Energies

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Hydrogen energy is regarded as an ideal solution for addressing climate change issues and an indispensable part of future integrated energy systems. The most environmentally friendly hydrogen production method remains water electrolysis, where the electrolyzer constructs the physical interface between electrical energy and hydrogen energy. However, few articles have reviewed the electrolyzer from the perspective of power supply topology and control. This review is the first to discuss the positioning of the electrolyzer power supply in the future integrated energy system. The electrolyzer is reviewed from the perspective of the electrolysis method, the market, and the electrical interface modelling, reflecting the requirement of the electrolyzer for power supply. Various electrolyzer power supply topologies are studied and reviewed. Although the most widely used topology in the current hydrogen production industry is still single-stage AC/DC, the interleaved parallel LLC topology constructed by wideband gap power semiconductors and controlled by the zero-voltage switching algorithm has broad application prospects because of its advantages of high power density, high efficiency, fault tolerance, and low current ripple. Taking into account the development trend of the EL power supply, a hierarchical control framework is proposed as it can manage the operation performance of the power supply itself, the electrolyzer, the hydrogen energy domain, and the entire integrated energy system.

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Modelling and Operation of 6-Pulse Thyristor Rectifiers for supplying High Power Electrolyzers

Cited by 2 publications

References 10 publications

Asymmetrical firing angle modulation for 12-pulse thyristor rectifiers supplying high-power electrolyzers

Asymmetrical firing angle modulation for 12-pulse thyristor rectifiers supplying high-power electrolyzers

A Comprehensive Review on the Power Supply System of Hydrogen Production Electrolyzers for Future Integrated Energy Systems

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