基于新能源发电的电解水制氢直流电源研究

周京华; 孟祥飞; 陈亚爱; 张贵辰

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

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太阳能学报 ›› 2022, Vol. 43 ›› Issue (6) : 389-397. DOI: 10.19912/j.0254-0096.tynxb.2022-0460

基于新能源发电的电解水制氢直流电源研究

周京华, 孟祥飞, 陈亚爱, 张贵辰

作者信息 +

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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文章历史 +

摘要

利用新能源发电进行电解水制氢是实现新能源就地消纳和氢能利用的重要途径,以匹配电解水制氢工作特性的制氢电源为研究对象,通过分析质子交换膜电解槽电解电流、温度与电解槽端口电压、能量效率、制氢速度之间的关系,得出制氢电源需具备输出低电流纹波、输出大电流、宽范围电压输出的特性。为满足新能源电解制氢系统需求,提出一种基于Y型三相交错并联LLC拓扑结构的制氢电源方案,该方案谐振腔三相交错并联输出,满足电解槽大电流低纹波工作特性,并采用脉冲频率控制实现谐振软开关,提高变换效率。最后,搭建仿真模型和6 kW模块化实验样机,验证所提出方案的合理性与可行性。

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.

导出引用

周京华, 孟祥飞, 陈亚爱, 张贵辰. 基于新能源发电的电解水制氢直流电源研究[J]. 太阳能学报. 2022, 43(6): 389-397 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0460

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

中图分类号： TM46

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