东北大学学报(自然科学版) ›› 2025, Vol. 46 ›› Issue (7): 30-36.DOI: 10.12068/j.issn.1005-3026.2025.20240184

• 工业智能理论与方法 • 上一篇    下一篇

考虑储能荷电状态的可再生能源制氢优化控制

王智良, 郭亮亮, 李新宇, 刘鑫蕊()   

  1. 东北大学 信息科学与工程学院,辽宁 沈阳 110819
  • 收稿日期:2024-10-18 出版日期:2025-07-15 发布日期:2025-09-24
  • 通讯作者: 刘鑫蕊
  • 作者简介:王智良(1974—),男,辽宁沈阳人,东北大学副教授,硕士生导师
  • 基金资助:
    国家自然科学基金资助项目(62173074);国家自然科学基金资助项目(52477075)

Optimal Control of Hydrogen Production by Renewable Energy Source Considering State of Charge of Energy Storage

Zhi-liang WANG, Liang-liang GUO, Xin-yu LI, Xin-rui LIU()   

  1. School of Information Science & Engineering,Northeastern University,Shenyang 110819,China.
  • Received:2024-10-18 Online:2025-07-15 Published:2025-09-24
  • Contact: Xin-rui LIU

摘要:

针对可再生能源、电解槽和储能设备集成的孤岛直流微电网制氢系统,提出了1种考虑储能荷电状态(state of charge,SoC)的优化控制策略.首先,对碱性电解槽的制氢效率特性进行分析,提出了1种制氢效率随母线电压变化而自适应调整的优化控制方法,通过与储能系统协调互补,将制氢效率保持在较高的范围内.当储能SoC越过上下限时,设计了1种不依赖通信的SoC主动恢复控制策略,确保储能系统的安全运行.其次,设计了1种考虑极端工况下的功率协调控制策略,通过各个运行模式之间的灵活切换来保证直流微电网的稳定运行.最后,通过MATLAB/Simulink仿真平台对所提控制策略的有效性进行了验证.

关键词: 可再生能源, 直流微电网, 储能, 荷电状态(SoC), 制氢效率

Abstract:

An optimal control strategy considering the state of charge (SoC) of energy storage is proposed for an isolated DC microgrid for hydrogen production system composed of renewable energy, electrolytic cell, and energy storage equipment. Firstly, the characteristics of hydrogen production efficiency of alkaline electrolyzers are analyzed, and an optimal control method for adaptive adjustment of hydrogen production efficiency with bus voltage change is proposed. By coordinating with the energy storage system, the hydrogen production efficiency is kept within a high range. When the SoC of energy storage violates the upper and lower limits, a communication-independent SoC active recovery control strategy is designed to ensure the safe operation of the energy storage system. Secondly, a power coordinated control strategy considering extreme conditions is designed to ensure the stable operation of the DC microgrid through flexible switching between various operating modes. Finally, the effectiveness of the proposed control strategy is verified by MATLAB/Simulink simulation platform.

Key words: renewable energy source, DC microgrid, energy storage, state of charge(SoC), hydrogen production efficiency

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