李宏仲, 付国. 考虑风荷波动相似度的广义储能和输电网协同规划[J]. 现代电力, 2021, 38(2): 213-220. DOI: 10.19725/j.cnki.1007-2322.2020.0415
引用本文: 李宏仲, 付国. 考虑风荷波动相似度的广义储能和输电网协同规划[J]. 现代电力, 2021, 38(2): 213-220. DOI: 10.19725/j.cnki.1007-2322.2020.0415
LI Hongzhong, FU Guo. Collaborative Planning of Generalized Energy Storage and Transmission Network Considering Wind Load Fluctuation Similarity[J]. Modern Electric Power, 2021, 38(2): 213-220. DOI: 10.19725/j.cnki.1007-2322.2020.0415
Citation: LI Hongzhong, FU Guo. Collaborative Planning of Generalized Energy Storage and Transmission Network Considering Wind Load Fluctuation Similarity[J]. Modern Electric Power, 2021, 38(2): 213-220. DOI: 10.19725/j.cnki.1007-2322.2020.0415

考虑风荷波动相似度的广义储能和输电网协同规划

Collaborative Planning of Generalized Energy Storage and Transmission Network Considering Wind Load Fluctuation Similarity

  • 摘要: 由于风电和负荷的不匹配导致日净负荷的峰谷差增大, 引发输电堵塞和增加电网调峰压力,通过调控广义储能资源可以降低高风电渗透率下净负荷峰谷差过大、输电网短时阻塞的问题。首先,根据规划年各日净负荷波动曲线之间的相似度将其聚合为不同的场景;其次,以输电网和广义储能的投资成本、刚性负荷波动曲线与各节点广义储能出力曲线之间的相似度为优化目标,选择每种聚合结果中最大的日净负荷曲线作为典型场景,通过优化求解得到日净负荷波动趋势和经济性皆优的输电网和广义储能规划方案;最后,采用修正的Garver-6 节点系统验证了此方法的有效性。

     

    Abstract: The mismatch of wind power and power load increases the difference between peak load and valley load of daily net load, and it leads to the transmission congestion and higher pressure in power grid peak load regulation. By means of regulating the generalized energy storage resource the excessive difference between peak load and valley load of net load and short-time transmission network blockage under high wind power penetration can be mitigated. Firstly, according to the similarity among daily net load fluctuation curves in the planned year, the fluctuation curves were aggregated into different scenarios. Secondly, the investment cost of transmission network and generalized energy storage, as well as the similarity among fluctuation curves of rigid loads and output curves of generalized energy storages at all nodes were taken as optimization objectives, and the highest daily net load curves in each kind of aggregation results were selected as typical scenarios, and then by means of optimization solution the planning scheme, in which both transmission network and generalized energy storage were optimal, was obtained. Finally, the effectiveness of the proposed method was vilified by the modified garver-6 buses system.

     

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