基于储能-多端软开关时空灵活性的配电网分布式光伏承载力提升方法

刁涵彬; 刘康; 李培强; 肖家杰

doi:10.19912/j.0254-0096.tynxb.2025-0878

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (12) : 1-10. DOI: 10.19912/j.0254-0096.tynxb.2025-0878

基于储能-多端软开关时空灵活性的配电网分布式光伏承载力提升方法

刁涵彬, 刘康, 李培强, 肖家杰

作者信息 +

ENHANCEMENT STRATEGY FOR DISTRIBUTED PHOTOVOLTAIC HOSTING CAPACITY IN POWER DISTRIBUTION NETWORKS BASED ON SPATIOTEMPORAL FLEXIBILITY OF ENERGY STORAGE SYSTEMS AND MULTI-PORT SOFT OPEN POINTS

Diao Hanbin, Liu Kang, Li Peiqiang, Xiao Jiajie

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文章历史 +

摘要

为缓解新能源与负荷的时空刚性分布对分布式光伏消纳空间的制约,提出储能-智能软开关协同规划策略以提升配电网对分布式光伏的承载力。首先,为评估多端软开关（MSOP）和储能（ESS）在时空灵活性上的协作效益,提出一个整合支路电流时间均匀分布水平与网损灵敏度的评价指标。然后,基于协作效益评价指标建立由规划和运行组成的两层随机优化模型。该模型通过嵌入MSOP-ES模型能考虑MSOP和ESS的多样融合形态。最后,该两层优化模型由Benders分解算法高效求解。IEEE 33节点配电网和一个实际配电网上的算例分析表明,所提方法通过规划储能和多端软开关在有效提升光伏承载力的同时,缓解了电压稳定问题并增强了网络灵活传输能力。

Abstract

To alleviate the limitation on distributed photovoltaic integration imposed by the inflexibility of the spatiotemporal distribution of new energy and load, this paper proposes a co-planning strategy for energy storage and intelligent soft-switching to enhance the capability of power distribution networks for distributed PV power. Firstly, to evaluate the collaborative benefits of multi-port soft open point （MSOP） and energy storage system （ESS） in spatiotemporal flexibility, an evaluation metric integrating branch current time-uniformity level and network loss sensitivity is proposed. Subsequently, a two-level stochastic optimization model comprising planning and operation is established based on this collaborative benefit metric. By embedding the MSOP-ES model, this framework is capable of considering diverse integration forms of MSOP and ESS. Finally, the two-level optimization model is efficiently solved using the Benders decomposition algorithm. Case studies on the IEEE 33-node distribution network and a real-world distribution network demonstrate that the proposed method effectively enhances PV hosting capacity while improving voltage stability and flexible transfer capability by planning ESS and MSOP integration.

导出引用

刁涵彬, 刘康, 李培强, 肖家杰. 基于储能-多端软开关时空灵活性的配电网分布式光伏承载力提升方法[J]. 太阳能学报. 2025, 46(12): 1-10 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0878

Diao Hanbin, Liu Kang, Li Peiqiang, Xiao Jiajie. ENHANCEMENT STRATEGY FOR DISTRIBUTED PHOTOVOLTAIC HOSTING CAPACITY IN POWER DISTRIBUTION NETWORKS BASED ON SPATIOTEMPORAL FLEXIBILITY OF ENERGY STORAGE SYSTEMS AND MULTI-PORT SOFT OPEN POINTS[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 1-10 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0878

中图分类号： TM73

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