| 平抑风电波动的混合储能系统自适应控制策略 |
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| 引用本文： | 李志强,李赛,王凡凯.平抑风电波动的混合储能系统自适应控制策略[J].现代电力,2020,37(6):646-653. |
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| 作者姓名： | 李志强 李赛 王凡凯 |
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| 作者单位： | 北京华电天仁电力控制技术有限公司，北京市 海淀区 100039 |
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| 摘 要： | 针对由全钒液流电池、磷酸铁锂电池及超级电容 3种储能介质组成的混合储能系统，提出一种针对不同储能介质特性进行混合储能系统自适应功率分配及调节优化的风电功率波动平抑控制策略。通过二阶低通滤波算法进行针对不同储能介质特性的自适应功率分配及调节，同时考虑系统后续运行需求，进行基于SOC反馈的分段功率控制优化调整，使储能系统工作在正常区间的同时为后续运行时段提供一定的充放电空间，最后经过储能系统极限约束修正，实现对风电场输出功率波动的有效平抑。通过在储能型风电场项目中的应用实验，验证了此控制策略的有效性。
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| 关 键 词： | 控制策略 混合储能系统 波动平抑 低通滤波 功率分配 |
| 收稿时间： | 2019-12-01 |
Adaptive Control Strategy of Hybrid Energy Storage System for Mitigating Wind Power Fluctuations |
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| Affiliation: | Beijing Huadian Tianren Electric Power Control Technology CO., Ltd., Haidian District, Beijing 100039, China |
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| Abstract: | Aiming at the hybrid energy storage system consisting of three vanadium flow batteries, lithium iron phosphate battery and super capacitor energy storage technology, a wind power fluctuation mitigation control strategy based on adaptive power allocation for hybrid energy storage system was proposed. The second-order low-pass filtering algorithm was used to adaptively allocate and adjust the characteristics of different energy storage systems. Considering the subsequent operation requirements of the system, the segmentation power control optimization adjustment based on SOC feedback was performed to make the energy storage system work in the normal interval and provides a certain charging and discharging space for the subsequent operation period. And finally, through the limit constraint correction of the energy storage system, the effective mitigation of the output power fluctuation of the wind farm was realized. The effectiveness of this control strategy was finally verified by the application experiments in the actual wind farm energy storage system. |
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