基于多层能量管理的混合储能风电功率波抑策略

闫来清; 王康; 许佳奇; 翟卓涛; 郑立星; 刘淼

doi:10.19912/j.0254-0096.tynxb.2024-0812

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (9) : 98-107. DOI: 10.19912/j.0254-0096.tynxb.2024-0812

基于多层能量管理的混合储能风电功率波抑策略

闫来清¹, 王康¹, 许佳奇¹, 翟卓涛¹, 郑立星¹, 刘淼^2,3

作者信息 +

HYBRID ENERGY STORAGE WIND POWER FLUCTUATION STABILIZATION STRATEGY BASED ON MULTI-LAYER ENERGY MANAGEMENT

Yan Laiqing¹, Wang Kang¹, Xu Jiaqi¹, Zhai Zhuotao¹, Zheng Lixing¹, Liu Miao^2,3

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文章历史 +

摘要

针对由超级电容与锂电池构成的混合储能系统,研究风电功率波动平抑策略实现风电平滑并网。首先,提出考虑窗口长度上限的自适应滑动平均算法对实时风电功率进行平滑处理,同时将计算得到的混合功率进行变分模态分解（VMD）得到模态分量,并以复合熵为目标采用改进的猎食者算法（IHPO）对VMD预设参数寻优。其次,通过Hilbert变换确定高低频分界频率,将高频信号分配给超级电容,低频信号分配给锂电池。考虑储能设备充放电过程中的荷电状态（SOC）,提出多层能量管理策略实现混合储能功率的动态优化与再分配。最后,通过仿真对比,验证该文所提策略能有效平抑风电功率波动,同时保证超级电容与锂电池两种储能设备的SOC工作在合理区间且累积偏差量较改进前分别减少13.8%和14.9%。

Abstract

This study examines a wind power fluctuation smoothing strategy for a hybrid energy storage system comprising supercapacitors and lithium batteries to achieve stable grid connection for wind power. An adaptive sliding average algorithm, which accounts for the upper limit of window length, is introduced to smooth real-time wind power. Subsequently, the computed hybrid power undergoes variational mode decomposition （VMD） to extract modal components, and composite entropy serves as the objective for the improved hunter-prey optimizer （IHPO） to optimize the predetermined VMD parameters. Secondly, the high and low-frequency cutoff points are established through the Hilbert transform, withhigh-frequency signals allocated to the supercapacitor and the low-frequency signal designated for the lithium batteries. A multilayer energy management strategy is proposed to achieve dynamic optimization and redistribution of hybrid energy storage power, taking into account the state of charge （SOC） during the charging and discharging processes of the energy storage devices. Finaly simulation resaalty confirm that the proposed strategy can effectively mitigate wind power fluctuations while ensuring that the state of charge （SOC） of both supercapacito, and lithium-ion batteries operates within acceptable ranges, resulting in a cumulative deviation reduction of 13.8% and 14.9%, respectively, compared to before pre-improvement.

导出引用

闫来清, 王康, 许佳奇, 翟卓涛, 郑立星, 刘淼. 基于多层能量管理的混合储能风电功率波抑策略[J]. 太阳能学报. 2025, 46(9): 98-107 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0812

Yan Laiqing, Wang Kang, Xu Jiaqi, Zhai Zhuotao, Zheng Lixing, Liu Miao. HYBRID ENERGY STORAGE WIND POWER FLUCTUATION STABILIZATION STRATEGY BASED ON MULTI-LAYER ENERGY MANAGEMENT[J]. Acta Energiae Solaris Sinica. 2025, 46(9): 98-107 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0812

中图分类号： TM614

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