可再生能源电解制氢宽范围运行控制策略

夏杨红; 胡致远; 韦巍; 赵波; 章雷其

doi:10.19912/j.0254-0096.tynxb.2023-0546

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (8) : 34-43. DOI: 10.19912/j.0254-0096.tynxb.2023-0546

可再生能源电解制氢宽范围运行控制策略

夏杨红^1,2, 胡致远^1,2, 韦巍^1,2, 赵波³, 章雷其³

作者信息 +

WIDE RANGE OPERATION CONTROL STRATEGY FOR ELECTROLYSIS HYDROGEN PRODUCTION BASED ON RENEWABLE ENERGY

Xia Yanghong^1,2, Hu Zhiyuan^1,2, Wei Wei^1,2, Zhao Bo³, Zhang Leiqi³

Author information +

文章历史 +

摘要

首先分析碱液电解制氢低载低效率的机理,发现通过重塑激励电场可有效提升系统低载效率。基于此,提出多模态自寻优（MMSO）电解制氢变流技术及其对应的变流器原理样机,并将所提控制策略应用于光伏直驱的2 Nm³/h碱液电解槽（约10 kW）。发现相比于传统直流供电策略,所提策略具有以下优势：1）低载工况下,MMSO电解制氢变流控制策略最大效率提升超过两倍;2）效率≥50%约束下,系统运行范围从30%~100%扩大至10%~100%;3）碱液电解槽可全范围跟踪可再生能源出力。

Abstract

This paper analyzes the inefficiency mechanism of low-load alkaline water electrolyzers（AWEs）. It is found that through modifying the excitation electric field, the low-load performance of AWEs can be greatly enhanced. Based on this, a multi-modal self-optimization （MMSO） control strategy and the corresponding prototype converter are proposed. The effectiveness of the proposed method is verified by a 2 Nm³/h AWE （about 10 kW） directly driven by PV arrays. Experimental results show that compared to the conventional DC power supply, 1） the maximum efficiency improvement can exceed two times, 2） under the constraint of efficiency≥50%, the system operation is enhanced from 30%-100% to 10%-100% of rated load; 3） the AWE can follow the fluctuating PV power well.

导出引用

夏杨红, 胡致远, 韦巍, 赵波, 章雷其. 可再生能源电解制氢宽范围运行控制策略[J]. 太阳能学报. 2024, 45(8): 34-43 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0546

Xia Yanghong, Hu Zhiyuan, Wei Wei, Zhao Bo, Zhang Leiqi. WIDE RANGE OPERATION CONTROL STRATEGY FOR ELECTROLYSIS HYDROGEN PRODUCTION BASED ON RENEWABLE ENERGY[J]. Acta Energiae Solaris Sinica. 2024, 45(8): 34-43 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0546

中图分类号： TK91

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