考虑中长期库容波动的水光储互补系统双层优化调度

罗杰; 刘玲玲; 周恒权

doi:10.19912/j.0254-0096.tynxb.2024-1929

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (3) : 124-133. DOI: 10.19912/j.0254-0096.tynxb.2024-1929

考虑中长期库容波动的水光储互补系统双层优化调度

罗杰, 刘玲玲, 周恒权

作者信息 +

TWO-TIER OPTIMAL SCHEDULING OF WATER-PHOTOVOLTAIC STORAGE COMPLEMENTARY SYSTEM CONSIDERING MEDIUM- AND LONG-TERM RESERVOIR CAPACITY FLUCTUATIONS

Luo Jie, Liu Lingling, Zhou Hengquan

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文章历史 +

摘要

针对梯级水电站库容波动对发电效率与稳定性的影响,该文提出一种考虑中长期库容波动的水光储互补系统双层优化调度方法。采用核密度估计法和Copula函数生成光伏和水电径流的典型出力场景,并利用K-means对场景进行缩减。建立水光中长期优化调度模型,通过遗传算法求解得到梯级水电站的库容波动量,将其作为水光储系统短期优化调度模型的边界条件,以系统收益最大为目标,使用Cplex对短期调度模型进行求解。通过对新疆某梯级水电站仿真分析,验证方法的有效性。算例分析结果表明,水光储互补系统可通过梯级水电站的快速调节能力和储能装置来保证光伏消纳,加入中长期库容波动约束后,梯级水电站在相同出力的情况下,可降低水电站的出库流量,提高发电效率。

Abstract

To address the impact of fluctuating reservoir capacity on the generation efficiency and stability of cascade hydropower stations,this paper proposes a two-level optimization scheduling method for a hydro-photovoltaic-storage complementary system that considers medium- and long-term reservoir capacity fluctuations.Typical output scenarios of PV and hydropower runoff are generated using kernel density estimation and Copula function,and the scenarios are reduced using K-means.The medium and long-term optimal scheduling model of water and solar power is established,and the fluctuation of the reservoir capacity of the cascade hydropower station is solved by genetic algorithm,which is used as the boundary condition of the short-term optimal scheduling model of the water-photovoltaic storage system, and the short-term scheduling model is solved by using Cplex to maximize the system benefit.The effectiveness of the method is verified by simulation analysis of a terrace hydropower station in Xinjiang.The results of the example analysis show that the water-photovoltaic storage complementary system can ensure the PV consumption through the fast regulation ability of the stepped hydropower station and the energy storage device,and after joining the medium- and long-term reservoir fluctuation constraints,the stepped hydropower station can reduce the outlet flow of the hydropower station and improve the power generation efficiency under the same output capacity.

导出引用

罗杰, 刘玲玲, 周恒权. 考虑中长期库容波动的水光储互补系统双层优化调度[J]. 太阳能学报. 2026, 47(3): 124-133 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1929

Luo Jie, Liu Lingling, Zhou Hengquan. TWO-TIER OPTIMAL SCHEDULING OF WATER-PHOTOVOLTAIC STORAGE COMPLEMENTARY SYSTEM CONSIDERING MEDIUM- AND LONG-TERM RESERVOIR CAPACITY FLUCTUATIONS[J]. Acta Energiae Solaris Sinica. 2026, 47(3): 124-133 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1929

中图分类号： TK79

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