This paper proposes a temporal decomposition strategy to reduce the computation time of security-constrained unit commitment (SCUC). The novelty of this paper is twofold. The scheduling horizon is decomposed into multiple subhorizons. The concept of coupling intervals is introduced, and a set of auxiliary counting variables and logical expressions along with their equivalent linear models are formulated to handle intertemporal ramp constraints and minimum on/off times between consecutive subhorizons. An accelerated analytical target cascading (A-ATC) algorithm is developed to coordinate SCUC subproblems and find the optimal solution for the whole operation horizon in a distributed manner. An initialization strategy is presented to enhance the convergence performance of A-ATC. The proposed algorithm is tested on four test systems.

中文翻译：

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安全约束单元承诺的时间分解

本文提出了一种时间分解策略，以减少安全约束单元承诺（SCUC）的计算时间。这篇论文的新颖性是双重的。调度范围被分解为多个子范围。引入了耦合区间的概念，并制定了一组辅助计数变量和逻辑表达式及其等效线性模型，以处理连续亚水平之间的跨时斜坡约束和最小开/关时间。开发了一种加速分析目标级联（A-ATC）算法来协调 SCUC 子问题并以分布式方式找到整个操作范围的最佳解决方案。提出了一种初始化策略来提高 A-ATC 的收敛性能。所提出的算法在四个测试系统上进行了测试。