RESEARCH ON DC POWER SUPPLY FOR HYDROGEN PRODUCTION FROM ELECTROLYTIC WATER BASED ON NEW ENERGY GENERATION

Zhou Jinghua; Meng Xiangfei; Chen Yaai; Zhang Guichen

doi:10.19912/j.0254-0096.tynxb.2022-0460

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (6) : 389-397. DOI: 10.19912/j.0254-0096.tynxb.2022-0460

RESEARCH ON DC POWER SUPPLY FOR HYDROGEN PRODUCTION FROM ELECTROLYTIC WATER BASED ON NEW ENERGY GENERATION

Zhou Jinghua, Meng Xiangfei, Chen Yaai, Zhang Guichen

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Abstract

Hydrogen production from electrolytic water based on new energy generation is an important way to realize the local consumption of new energy and the utilization of hydrogen energy. In this paper, the hydrogen production power supply matching the working characteristics of electrolytic water hydrogen production was investigated. Through the analysis of the correlation between the electrolysis current and temperature of the proton exchange membrane electrolyzer and the electrolyzer port voltage, energy efficiency and hydrogen production speed, it is concluded that the hydrogen production power supply should be characterized by low output current ripple, high output current and wide range voltage output. To meet the requirements of the system of hydrogen production from electrolytic water based on new energy, a hydrogen production power supply scheme was proposed based on Y-type three-phase staggered parallel LLC topology. In the proposed scheme, the cavity with three-phase staggered parallel output is resonated to meet the operating characteristics （high current and low ripple） of the electrolyzer, and pulse frequency control is adopted to achieve resonant soft-switching operation and increase conversion efficiency. Lastly, a simulation model and a 6 kW experimental prototype were built to verify the rationality and feasibility of the proposed scheme.

Key words

new energy generation / hydrogen production from electrolytic water / proton exchange membrane / three-phase interleaved parallel LLC / soft switching

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Zhou Jinghua, Meng Xiangfei, Chen Yaai, Zhang Guichen. RESEARCH ON DC POWER SUPPLY FOR HYDROGEN PRODUCTION FROM ELECTROLYTIC WATER BASED ON NEW ENERGY GENERATION[J]. Acta Energiae Solaris Sinica. 2022, 43(6): 389-397 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0460

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