STABILITY ANALYSIS OF HYDROGEN PRODUCTION POWER SUPPLY DURING ASYMMETRIC FAULTS

Xu Zhaoran; Wang Tiezhi; Ding Zijie; Sun Yupeng; Zhang Lei; Zhang Tianyu

doi:10.19912/j.0254-0096.tynxb.2024-1995

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (3) : 575-583. DOI: 10.19912/j.0254-0096.tynxb.2024-1995

STABILITY ANALYSIS OF HYDROGEN PRODUCTION POWER SUPPLY DURING ASYMMETRIC FAULTS

Xu Zhaoran¹, Wang Tiezhi¹, Ding Zijie¹, Sun Yupeng¹, Zhang Lei², Zhang Tianyu³

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Abstract

When an asymmetrical fault occurs in the grid, in order to support the grid, the hydrogen generation power supply needs to use the positive-negative-sequence separation control method to provide positive-sequence reactive power to the grid and absorb the negative-sequence reactive power of the grid, and the stability of the system during the fault needs to be considered at this time. In this paper, the stability factors affecting the hydrogen production power supply during asymmetric faults are investigated. Firstly, the topology and control method are briefly introduced, and then a quasi-steady state model of the system is established, and the stability of the hydrogen power supply is analyzed from three factors, namely, the positive and negative sequence components of the grid voltage, the magnitude of the grid-side impedance, and the ratio coefficients of the positive and negative sequence currents to the reactive power, respectively. Finally, the feasibility of the control method is illustrated through simulation and the reasonableness of the theoretical analysis is verified.

Key words

hydrogen production / rectifier / reactive power / asymmetric faults / quasi-steady state modelling

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Xu Zhaoran, Wang Tiezhi, Ding Zijie, Sun Yupeng, Zhang Lei, Zhang Tianyu. STABILITY ANALYSIS OF HYDROGEN PRODUCTION POWER SUPPLY DURING ASYMMETRIC FAULTS[J]. Acta Energiae Solaris Sinica. 2026, 47(3): 575-583 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1995

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