| 引用本文: | 羡一鸣,安之,刘斯伟,戚庆茹,夏明超,陈奇芳.面向高比例新能源接入的电氢耦合系统设想及分析[J].电力自动化设备,2024,44(4):1-8 |
| XIAN Yiming,AN Zhi,LIU Siwei,QI Qingru,XIA Mingchao,CHEN Qifang.Assumption and analysis of electricity-hydrogen coupling system for high proportion of new energy[J].Electric Power Automation Equipment,2024,44(4):1-8 |
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| 摘要: |
| 高比例新能源接入电力系统，其高随机性与波动性将造成系统“源-荷”结构失衡，且高比例电力电子化将导致传统电力系统以同步发电机和机电动态特性为基础的技术特性发生深刻变化。为此，提出了一种采用“送端绿电离网外送-受端离网制氢-氢燃气并网发电”模式的电氢耦合系统，即在送端将新能源电力汇集接入至与交流电网无电气联系的直流输电网络中，在受端满足电解水制氢直流负荷并通过氢燃气发电方式支撑交流电网，从而将大量新能源消纳和新增“西电东送”需求与送端/受端交流电网解耦。所提电氢耦合系统不仅能改善系统电力电量平衡，促进高比例新能源消纳，还能够保障电力系统的安全可靠运行，可为我国高比例新能源电力系统的演进方向提供参考。 |
| 关键词: 高比例新能源 电氢耦合系统 直流电网 电解水制氢 储氢 |
| DOI：10.16081/j.epae.202310014 |
| 分类号:TM73 |
| 基金项目:国家自然科学基金资助项目(52007004) |
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| Assumption and analysis of electricity-hydrogen coupling system for high proportion of new energy |
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XIAN Yiming1, AN Zhi2, LIU Siwei2, QI Qingru2, XIA Mingchao1, CHEN Qifang1
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1.School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China;2.State Grid Economic and Technological Research Institute Co.,Ltd.,Beijing 102209, China
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| Abstract: |
| The high proportion of new energy causes an imbalance in the “supply-demand” structure in power system due to its high randomness and volatility, and the high proportion of power electronic devices makes the technical characteristics of traditional power systems based on synchronous generators and electromechanical dynamic characteristics change profoundly. Therefore, an electricity and hydrogen coupling system using the “green power delivery off grid at sending end-off grid hydrogen production at receiving end-gas turbine grid connected power generation by hydrogen fueled” mode is proposed. This system integrates new energy power into a DC transmission network that is not electrically connected to the traditional AC power grid at the sending end, meets the DC load of electrolytic water hydrogen production at the receiving end, and supports the AC power grid through hydrogen gas power generation mode, witch decouples a large amount of new energy consumption and the newly added demand for “West-to-East power transmission” from the AC power grid at the sending/receiving ends. The proposed electricity and hydrogen coupling system not only improves the electric power and energy balance of the power system and promotes the new energy consumption, but also ensures the safe and reliable operation of the power system, provides a reference for the evolution direction of the high proportion of new energy power system in China. |
| Key words: high proportion of new energy electricity-hydrogen coupling system DC grid electrolytic water hydrogen production hydrogen storage |
