推动氢能产业发展：一个能源系统建模框架
Ramping up the hydrogen sector: An energy system modeling framework
AI总结：
本研究构建了覆盖电力、天然气、氢能领域的模块化跨部门耦合能源系统优化模型，提出稳态气流下氢气掺混的新型建模方法，证实掺混可推动氢能产业早期发展，忽略技术细节会引发规划次优与运行不可行问题。
摘要：
随着社会向脱碳方向转型，能源系统整合正变得愈发重要。在这一转型过程中，能源载体氢有望发挥关键作用，因为它可由（可再生）电力生产，并能应用于跨行业的大量应用场景与工艺流程中。但截至目前，全球尚未建成可再生氢的生产、存储与运输基础设施，也不存在大规模的可再生氢需求。为连接生产端与需求端，欧洲计划未来对现有天然气管网进行改造与扩建。然而，在氢能产业发展的早期阶段（2020年代及2030年代初），有研究提出将天然气与氢气混合后通过管道联合输送的方案。在此背景下，本文从建模视角研究氢气掺混问题，既分析了纳入（或忽略）技术建模细节的影响，也探讨了其对氢能产业发展的潜在作用。为此，我们提出了一个高度模块化、灵活的跨部门耦合能源系统优化模型，覆盖电力、天然气与氢能领域，并引入了一种全新的气流公式，用于在稳态气流场景下对氢气掺混过程建模。一项简化案例研究表明，氢气掺混具备启动并推动氢能产业发展的潜力；而忽略气流的技术实际特性——尤其是在掺混场景下——不仅会导致氢能领域，还会导致电力领域的扩张规划出现次优结果，甚至会造成系统在运行层面不可行。
英文摘要：
With the transition towards a decarbonized society, energy system integration is becoming ever more essential. In this transition, the energy vector hydrogen is expected to play a key role as it can be produced from (renewable) power and utilized in a plethora of applications and processes across sectors. To date, however, there is no infrastructure for the production, storage, and transport of renewable hydrogen, nor is there a demand for it on a larger scale. In order to link production and demand sites, it is planned to re-purpose and expand the existing European gas pipeline network in the future. During the early stages of ramping up the hydrogen sector (2020s and early 2030s), however, blending natural gas with hydrogen for joint pipeline transmission has been suggested. Against this background, this paper studies hydrogen blending from a modeling perspective, both in terms of the implications of considering (or omitting) technical modeling details and in terms of the potential impact on the ramp-up of the hydrogen sector. To this end, we present a highly modular and flexible integrated sector-coupled energy system optimization model of the power, natural gas, and hydrogen sectors with a novel gas flow formulation for modeling blending in the context of steady-state gas flows. A stylized case study illustrates that hydrogen blending has the potential to initiate and to facilitate the ramp-up of the hydrogen sector, while omitting the technical realities of gas flows -- particularly in the context of blending -- can result in suboptimal expansion planning not only in the hydrogen, but also in the power sector, as well as in an operationally infeasible system.
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