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arXiv 1604.04890math.OC
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具有动态不确定集和能量存储的多阶段鲁棒机组组合

Multistage Robust Unit Commitment with Dynamic Uncertainty Sets and Energy Storage

Alvaro Lorca, Xu Andy Sun

摘要:

风能和太阳能的深度渗透是未来电网的关键组成部分。然而,这些可再生能源的不确定性和随机性给电力系统的可靠和经济运行带来了重大挑战。出于这些挑战,我们提出了一个多级自适应鲁棒最优化模型的机组组合(UC)问题,模型的调度过程的顺序性,并利用一种新型的动态不确定性集捕捉的时间和空间的相关性的风能和太阳能发电。该模型还考虑了能量存储设备的操作。我们提出了一个简化和有效的仿射调度决策的政策,并开发了一个有效的算法框架,使用约束生成和基于对偶的重构与各种改进。大量的计算实验表明,所提出的方法可以有效地解决波兰2736总线系统的高维不确定性下的60个风电场和30个太阳能发电场的多级鲁棒UC问题。计算结果还表明,所提出的模型导致显着的好处,在成本和可靠性与传统的不确定性集的鲁棒模型,以及确定性模型与储备规则。

英文摘要:

The deep penetration of wind and solar power is a critical component of the future power grid. However, the intermittency and stochasticity of these renewable resources bring significant challenges to the reliable and economic operation of power systems. Motivated by these challenges, we present a multistage adaptive robust optimization model for the unit commitment (UC) problem, which models the sequential nature of the dispatch process and utilizes a new type of dynamic uncertainty sets to capture the temporal and spatial correlations of wind and solar power. The model also considers the operation of energy storage devices. We propose a simplified and effective affine policy for dispatch decisions, and develop an efficient algorithmic framework using a combination of constraint generation and duality based reformulation with various improvements. Extensive computational experiments show that the proposed method can efficiently solve multistage robust UC problems on the Polish 2736-bus system under high dimensional uncertainty of 60 wind farms and 30 solar farms. The computational results also suggest that the proposed model leads to significant benefits in both costs and reliability over robust models with traditional uncertainty sets as well as deterministic models with reserve rules.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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