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arXiv 2602.11490math.OC
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一种在不确定性下的高效混合启发式方法用于传输扩展规划

An Efficient Hybrid Heuristic for the Transmission Expansion Planning under Uncertainty

Universidade Federal da Paraíba(帕拉伊巴联邦大学);PSR - Energy Consulting and Analytics(PSR能源咨询与分析)

Yure Rocha, Teobaldo Bulhões, Anand Subramanian, Joaquim Dias Garcia

AI总结:

本文提出一种结合渐进贴现算法和集成方法的混合启发式策略,用于解决具有不确定性的传输扩展规划问题,通过在大型系统中实现高效求解,平均成本降低5.28%。

摘要:

我们针对在可再生能源发电能力和需求存在不确定性的随机传输扩展规划(STEP)问题进行研究。STEP的目标是最小化总传输投资和发电成本。为解决大规模系统带来的计算挑战,我们提出了一种启发式策略,该策略结合了渐进贴现(PH)算法用于场景分解,以及用于求解所得到子问题的集成方法。后者结合了破坏-修复运算符、束搜索过程和混合整数规划求解器。所提出的框架在文献中的大型系统上进行了评估,这些系统最多有10000个节点,并通过参数从加州测试系统(CATS)进行适应性调整。与包含相同集成方法的非平凡基线算法相比,所提出的基于PH的方法在考虑的六个系统中(包括CATS)始终提高了求解质量,平均成本降低了5.28%,并在2小时的时间限制内实现。

英文摘要:

We address the stochastic transmission expansion planning (STEP) problem under uncertainty in renewable generation capacity and demand. STEP's objective is to minimize total transmission investment and generation costs. To tackle the computational challenges posed by large-scale systems, we propose a heuristic strategy that combines the progressive hedging (PH) algorithm for scenario-wise decomposition with an integrated approach for solving the resulting subproblems. The latter combines a destroy-and-repair operator, a beam search procedure, and a mixed-integer programming solver. The proposed framework is evaluated on large-scale systems from the literature with up to 10000 nodes, adapted to stochastic scenarios using parameters from the California test system (CATS). Compared with a non-trivial baseline algorithm that includes the same integrated approach, the proposed PH-based method consistently improved solution quality for the six systems considered (including CATS), achieving an average cost improvement of 5.28% within a 2-hour time limit.

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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