Optimal Allocation of Offshore Wind Power-Multiple Energy Storage System Considering Gas-Solid Two-Phase Hydrogen Storage Characteristics

doi:10.11930/j.issn.1004-9649.202308048

Abstract

Abstract:

Under the background of the implementation of "dual carbon" policy, the importance of developing renewable energy such as offshore wind power has been increasing. However, the volatility of wind power brings about safety problems to the system operation. Therefore, this paper proposes an offshore wind power-multiple energy storage system that takes into account gas-solid two-phase hydrogen storage in combination with various energy storage technologies, and the requirements of safe operation of offshore wind power system are met through allocation of energy storage capacity. Firstly, the model of offshore wind power-multiple energy storage system is constructed, and the system structure and the energy flow are described. Secondly, the hydrogen storage system, which includes gas-solid two-phase hydrogen storage, is introduced, and the principle of solid-phase hydrogen storage is expounded. Then, an optimal allocation model of offshore wind power-multiple energy storage system is developed. Finally, a simulation is carried out with typical weekly operation data, and the results show that the proposed system can improve the safety and economy of the offshore wind power systems.

Key words: gas-solid two-phase, offshore wind power, multiple energy storage, optimal allocation, solid hydrogen storage

Wenjin JIANG, Qiaomei LIU, Xiaodong YANG, Dingfei QUE, Yu SHEN, Xianan HUANG, Zhenhua LAI. Optimal Allocation of Offshore Wind Power-Multiple Energy Storage System Considering Gas-Solid Two-Phase Hydrogen Storage Characteristics[J]. Electric Power, 2024, 57(9): 103-112.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202308048

https://www.electricpower.com.cn/EN/Y2024/V57/I9/103

Figures/Tables 8

References 24

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类型	时段	电价/ (元·(kW·h)^–1)
峰时	08:00—11:00, 14:00—17:00, 19:00—21:00	0.975
平时	07:00—08:00, 11:00—14:00, 17:00—19:00, 21:00—23:00	0.750
谷时	00:00—07:00, 23:00—24:00	0.525

类型	时段	电价/ (元·(kW·h)^–1)
峰时	08:00—11:00, 14:00—17:00, 19:00—21:00	0.975
平时	07:00—08:00, 11:00—14:00, 17:00—19:00, 21:00—23:00	0.750
谷时	00:00—07:00, 23:00—24:00	0.525

输电线路波动率上限	向电网供电收益/ 万元	风电减排收益/ 万元	年均收益/ 万元
0.1	85989.20	4820.31	90809.51
0.3	87021.11	4828.29	91848.00
0.5	87373.46	4830.95	92204.40

输电线路波动率上限	向电网供电收益/ 万元	风电减排收益/ 万元	年均收益/ 万元
0.1	85989.20	4820.31	90809.51
0.3	87021.11	4828.29	91848.00
0.5	87373.46	4830.95	92204.40

是否考虑固态储氢、危险运行时间	输电线容量/ MW	电解槽投资容量/MW	燃料电池投资容量/MW	储氢罐投资容量/t	电池投资容量/MW	固态储氢投资质量/t	年均收益/ 万元	年均投资成本/万元
不考虑	148.20	3.54	0.95	24.81	470.69	0.00	94671.56	16895.34
考虑	140.93	3.63	5.79	5.43	355.10	11.31	92204.40	15238.77