期刊
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
卷 11, 期 3, 页码 1773-1784出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSTE.2019.2940604
关键词
Hydrogen; Transportation; Renewable energy sources; Investment; Hydrogen storage; Hydroelectric power generation; Power systems; Hydrogen supply chain; electric network; the uniform hierarchical time discretization method
资金
- Research and Development Project of State Grid Corporation of China [SGAHDK00YJJS1900079]
- Key Program for International S&T Cooperation Projects of China [2016YFE0102600]
- Tsinghua University [TSTE-00145-2019]
Converting surplus renewable electricity into hydrogen by electrolyzers has been recognized as a promising scheme to reduce renewable energy spillage and to meet the increasing hydrogen demand. However, the scheme is challenged by the inherent spatiotemporal imbalance between renewable energy and hydrogen demand. Seasonal storages and interregional hydrogen supply chains (HSCs) are commonly employed in the literature to eliminate this imbalance, but long-distance hydrogen transportation can be costly. In this paper, we incorporated the electric network (EN) into the HSC for its ability to promptly and economically deliver energy at long distances. The uniform hierarchical time discretization method is utilized to achieve the unified operation of the HSC and the EN. On this basis, an integrated HSC-EN model is elaborated upon to investigate the optimal investment and operation of electrolyzers and storage. Finally, an industrial case in Sichuan province, China is analyzed to illustrate the benefits of incorporating the EN to reduce the investment cost and improve electrolyzers' utilization.
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