arXiv:2409.00493math.OCcs.LG2024-09

通过分布式优化框架降低伊朗用电峰值,提升可再生能源自用率。

Evaluation of Prosumer Networks for Peak Load Management in Iran: A Distributed Contextual Stochastic Optimization Approach

  • 构建分布式随机优化模型,融合预测与决策
  • 协同共享上下文信息使峰值负荷下降,总成本降低
  • 适合研究能源互联网与电网调度的学者使用

可再生能源型产消者面临在自给自足与电网及市场无缝接入之间取得平衡的复杂挑战。本文提出一种新型产消者网络框架,旨在缓解伊朗的峰值负荷问题,尤其针对可再生能源发电和需求固有的不确定性。提出一种以成本为导向的集成预测与优化方法,使产消者能够在分布式上下文随机优化(DCSO)框架下做出明智决策。问题被建模为双层两阶段多时间尺度优化,以确定在不同情景下考虑灵活资源时的最优运行与交互策略。为促进电网整合,提出一种基于共识的上下文信息共享机制,实现协调集体行为并更有效地利用上下文数据。通过引入最优性条件并线性化互补约束,将整体问题重构为混合整数线性规划(MILP)。此外,设计了一种基于一致性交替方向乘子法(ADMM)的分布式算法,兼顾计算可处理性与隐私保护。数值结果表明,将预测与优化相结合,并在产消者间实施上下文信息共享网络,显著降低了峰值负荷与总成本。

原文摘要 · Abstract (English)

Renewable prosumers face the complex challenge of balancing self-sufficiency with seamless grid and market integration. This paper introduces a novel prosumers network framework aimed at mitigating peak loads in Iran, particularly under the uncertainties inherent in renewable energy generation and demand. A cost-oriented integrated prediction and optimization approach is proposed, empowering prosumers to make informed decisions within a distributed contextual stochastic optimization (DCSO) framework. The problem is formulated as a bi-level two-stage multi-time scale optimization to determine optimal operation and interaction strategies under various scenarios, considering flexible resources. To facilitate grid integration, a novel consensus-based contextual information sharing mechanism is proposed. This approach enables coordinated collective behaviors and leverages contextual data more effectively. The overall problem is recast as a mixed-integer linear program (MILP) by incorporating optimality conditions and linearizing complementarity constraints. Additionally, a distributed algorithm using the consensus alternating direction method of multipliers (ADMM) is presented for computational tractability and privacy preservation. Numerical results highlights that integrating prediction with optimization and implementing a contextual information-sharing network among prosumers significantly reduces peak loads as well as total costs.

能源优化分布式计算峰荷管理

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