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arXiv 1602.02097math.OC
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基于凸函数差分的AC快速潮流Optimization

Fast AC Power Flow Optimization using Difference of Convex Functions Programming

Sandro Merkli, Alexander Domahidi, Juan Jerez, Manfred Morari, Roy S. Smith

摘要:

时域仿真是分析新型运行方案对电力系统影响的一种有效手段,例如用于研究基于优化的可再生能源削减以减轻电压违规。传统上,相邻点法被用来解决非凸交流最优潮流(OPF)问题中出现的这类模拟。本文提出了一种替代算法,更好地适合模拟框架,因为它可以更有效地热启动,具有线性的计算和内存的复杂性,在每次迭代的问题大小和全局收敛到Karush-Kuhn-Tucker(KKT)点的线性速率,如果它们存在。该算法利用了一个不同的凸函数的最优潮流问题,这可以有效地执行。数值结果比较的方法,最先进的OPF求解器实现MATPOWER,导致显着的加速比后者。

英文摘要:

An effective means for analyzing the impact of novel operating schemes on power systems is time domain simulation, for example for investigating optimization-based curtailment of renewables to alleviate voltage violations. Traditionally, interior-point methods are used for solving the non-convex AC optimal power flow (OPF) problems arising in this type of simulation. This paper presents an alternative algorithm that better suits the simulation framework, because it can more effectively be warm-started, has linear computational and memory complexity in the problem size per iteration and globally converges to Karush-Kuhn-Tucker (KKT) points with a linear rate if they exist. The algorithm exploits a difference-of-convex-functions reformulation of the OPF problem, which can be performed effectively. Numerical results are presented comparing the method to state-of-the-art OPF solver implementations in MATPOWER, leading to significant speedups compared to the latter.

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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