Utility-Scale Green Hydrogen System’s Operational Flexibility Under Temperature Dynamics
温度ダイナミクス下でのユーティリティ規模グリーン水素システムの運用柔軟性 (AI 翻訳)
Aaquib Firdous, Chandra Prakash Barala, Parul Mathuria, R. Bhakar, Mohammad Shahidehpour
🤖 gxceed AI 要約
日本語
本論文は、系統接続されたユーティリティ規模の水素システム（USHS）において、温度ダイナミクスがPEM電解槽の運用柔軟性に与える影響を多物理モデルで解析。温度変動が低負荷運転を制限し、起動回数や温度管理に影響することを示し、持続可能な水素生産のための運用最適化に貢献する。
English
This paper proposes a multi-physics model for utility-scale green hydrogen systems (USHS) to analyze how temperature dynamics affect the operational flexibility of PEM electrolysers. Results show that temperature variations limit low-load operation and increase auxiliary power for temperature regulation, impacting the economic viability of using surplus renewable energy for hydrogen production.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本はグリーン水素の導入をGX推進の柱としており、本モデルは大規模水素システムの運用最適化に直接寄与する。温度管理の実用的知見は日本の水素サプライチェーン構築に有用。
In the global GX context
This paper advances global understanding of grid-connected hydrogen system flexibility by incorporating real-world temperature dynamics, which is crucial for integrating hydrogen production with variable renewable energy sources. It addresses a gap in existing modeling approaches that often ignore temperature effects.
👥 読者別の含意
🔬研究者:Provides a comprehensive multi-physics model that accounts for temperature dynamics, offering a foundation for further studies on hydrogen system optimization.
🏢実務担当者:Highlights the importance of temperature management in electrolyser operations to improve economic feasibility of green hydrogen production.
🏛政策担当者:Indicates that policies supporting hydrogen should consider operational constraints from temperature to ensure realistic cost projections.
📄 Abstract（原文）
Grid-connected utility-scale hydrogen systems (USHSs) require enhanced operational flexibility to ensure sustainable hydrogen production. Proton exchange membrane (PEM) Hydrogen Electrolysers (HEs) exhibit greater operational flexibility, allowing lower and extended loading ranges to accommodate surplus renewable energy (SRE). However, in a modular setup, temperature variations significantly influence inter and intra-modular HE loadings, affecting their operational flexibility. Most studies either disregard temperature effects or model them simplistically as constants, neglecting variations in HE thermodynamics and ambient temperatures. Furthermore, these USHSs primarily operate near their rated capacities to satisfy downstream hydrogen demands. The need to utilize SRE will force HEs to operate under higher loadings, increasing auxiliary power requirements to regulate temperature, rendering SRE operations economically less attractive. Therefore, to understand the interplay between HE temperature dynamics and SRE utilization, this study proposes a multi-physics HE modelling, addressing the complexities of HE thermodynamics in USHSs. The proposed model considers HE temperature dynamics w.r.t. ambient conditions, lower loadings, extended operations, variable efficiency, modularization, and downstream operations to reflect the exact operational dynamics. Analyzing various HE operations, the results indicate that temperature dynamics modulates HE loadings, limiting its low-load operations to avoid startups and temperature management, providing precise HE operational flexibility in emerging low-carbon grid-connected USHSs.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1109/tia.2025.3584294first seen 2026-05-15 19:36:06
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