考虑空间分区划分与长周期氢储能调节的分布式电氢耦合能源站优化配置

doi:10.19595/j.cnki.1000-6753.tces.251110

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Abstract

At present, distributed electric-hydrogen coupled energy stations (DEHS) mostly focus on short-term dispatching, underestimate the strategic value of hydrogen energy storage in the resilience construction of new power systems, and do not consider the zoning structure of the distribution network, such as multi-regional power flow mutual aid and load temporal and spatial differences, resulting in the DEHS layout and grid collaborative optimization limited to local nodes, and the lack of cross-regional resource coordination capabilities. Therefore, this paper takes the distribution network as the main body and proposes a DEHS optimization strategy of zoning-site selection-capacity setting.
Firstly, at the partition level, the modularity index of distribution network partition based on improved edge weight is established, and the mutation discrete particle swarm optimization (MDPSO) based on mutation strategy is used to solve the problem. In view of the fact that the classical clustering method is difficult to retain the continuity of time series when processing data, the DEHS site selection and capacity configuration requirements in this paper cannot be applied. Therefore, the source-load time data reduction method based on the WARD method is used to reduce the time series of the source-load data. On this basis, the site selection and volume determination model of DEHS was established. The site selection model is based on the dynamic optimal flow (DOPF), with the goal of minimizing the network loss of the distribution network, and using MDPSO to plan the access location of DEHS. At the constant capacity level, based on the site selection and planning, considering the characteristics of the long and short cycles of electricity-hydrogen energy storage, the optimal capacity of each equipment is solved with the lowest target of the whole life cycle cost, including equipment investment, operation and maintenance and replacement costs.
Through the comparative analysis of different partition indicators, it can be seen that the proposed strategy not only improves the strength of the partition structure (0.36% higher than that of Scheme 2), but also improves the electrical coupling strength of the nodes in the partition (the proposed strategy reduces the voltage deviation by 13.14% and 16.29% compared with Scheme 2 and Scheme 3). DEHS not only alleviates the impact of new energy on the distribution network, but also reduces the network loss of the distribution network (the proposed strategy is 55.68% less than that of the unplanned situation, and 1.54% and 3.73% less than that of Scheme 2 and Scheme 3), and the hydrogen load in the zone is supported by the DEHS station under the guarantee of minimum cost (the proposed strategy is reduced by 1.56% and 2.69% compared with Scheme 2 and Scheme 3) and the optimal coordinated operation of each equipment. Through the comparative analysis of different scenarios, the battery energy storage capacity in DEHS is significantly reduced, which is 58% lower than that in the case of single battery energy storage, which avoids the overallocation of batteries in long-term energy storage. In terms of total cost, Scenario 2 is 37.84% lower than Scenario 1, indicating that moderate access to hydrogen energy storage can significantly reduce costs, and verifying the potential of hydrogen energy storage in long-term and large-capacity energy storage costs.

Key words： Distributed electro-hydrogen coupled energy station distribution network partition modularity site selection and capacity long-short term

Received: 24 June 2025

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TM614

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	Kong Lingguo
	Tian Yangjin
	Dong Xiaorui
	Zhou Xing
	Xie Jiabing

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Kong Lingguo,Tian Yangjin,Dong Xiaorui等. Consider the Optimization Configuration of Distributed Electro-Hydrogen Coupled Energy Stations For Spatial Partitioning and Long-Term Hydrogen Storage Adjustment[J]. Transactions of China Electrotechnical Society, 2026, 41(14): 4988-5002.

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